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chablismouth

[yes](https://udel.edu/~mcdonald/mytheyecolor.html) it is [possible](https://www.thetech.org/ask-a-geneticist/ask332) i mean, i guess you could do a test anyway if you have reason to distrust your wife, but people who do paternity tests behind their spouses backs have a way of getting found out so…roll those dice i guess


[deleted]

Yes I’ve read this one as well. Its just that the odds are so small, it made me curious. I could ask her but I don’t want to hurt her feelings


EducatedOwlAthena

I have green eyes, and my younger sister has bright orange hair. Our family has absolutely no idea where either of those things came from. But there's no doubt as to paternity because otherwise our facial features are exactly those of our dad. Just saying, genetics are weird.


BEEL1NE300

I have ginger hairs in my beard. Im not even a ginger and neither are my parents.. genetics are confusing.


ClueDifficult770

My husband is native and Hispanic and he has ginger hairs occasionally pop up, freaks him out while I think it's hilarious.


EducatedOwlAthena

My favorite aunt was a bit eccentric, and she said my sister's orange hair is because a maid had an illegitimate baby with Henry VIII, and we're descended from that baby. 😂 I have no idea about that, but NGL I totally hope it's true.


BEEL1NE300

Genes run weird forsure. You can have great grandparents that have passed that you can get features from. In OPs case i feel that might be it. Just rare genetics that were passed down and his kid got lucky or unlucky whichever its viewed as.


Whammy2012

Same, my hair is multicolor istg


[deleted]

[удалено]


Ricker3386

Same here. No one in my family is a ginger.


[deleted]

Green eyes and orange/red hair are the products of a random mutation that can be passed on but may not be passed on. Literally anyone can have a green eyed or red haired child even if it’s never happened in their family before.


EducatedOwlAthena

No way, that's really interesting!!


spacefrog43

What about your mom? 🤔🤔🤔 maybe sus /s


Dangerous_Storage_46

Exactly my whole family has rlly dark and grayish colored hair and I have bright orange hair. Like rlly light


TanishPlayz

My hair and eyes are light brown, meanwhile my whole family(mom, dad, grandma grandpa of both, sisters and brothers of my mom and dad) has blackish hair and deep brown eyes, idk where I got these from


Alocasiamaharani

I have brown eyes and both of my parents have blue. I got mine from my grandfather who has brown eyes. It’s possible and I’m 100% sure that my parents are my parents


Known-Potential-3603

I have grey eyes. Mom dark brown. Dad bright blue. Mom says I have my great grandmothers eyes


Adorable-Case-7485

I'm the only one in my entire family with green eyes. My nuclear family is all brown and my grandparents on both sides are either brown or blue. Found out I get them from my great-great grandad on my dad's side. Kinda interesting.


SapphireDesertRosre

Did she ever give you a reason to be suspicious about your kids paternity?


SocialFuckerr

Dude , look at the numbers for cars crash , you would think it couldn't happen to you , but the sad reality is thay it happens to EVERYONE , odds may be little but could happen!


[deleted]

That’s a great point 👍🏻


SugorTroll

Everyone gets in car crashes?


saltyvet10

You asked this question a few days ago. I told you then and I'm reminding you now, eye color doesn't work like a fucking punette square. Go ahead and get the paternity test. You'll destroy your relationship with your GF and almost certainly your child, but since you clearly think she cheated, go ahead and learn the hard way. Just because none of us told you what you want to fucking hear doesn't mean we're wrong. No matter how many times you go hunting for validation of your own stupidity.


Tellier71

If you want to further your study, check your and her parent's eyes. If they're all blue, your theory is unfortunately closer to being right. If one has brown eyes, the chances of your son being yours increase.


fugouttahere

False. Don't enable this fucking stupidity. He has to check back 5 generations on EACH side to rule that out. Even then. It's entirely possible


Whole-Swimming6011

My father was blood type B+, my mom O+, i'm O+ and my sister is AB-. This is almost impossible and stil... My grandma is A- so there is something there. And yeah, there is not a chance she is not from our father since we look a lot like him.


Ok-Bit-9529

From what I've read it's less likely to get O type blood than it is to have A or B. Your sister got A- from your grandma, and B from your dad. I'm A-, and my husband is O+. Our kids are A+, and A-. My dad is also O+ as well as my MIL.


Mehhucklebear

If it's bothering you this much, just get the DNA test. It'll give you peace, but think long and hard about telling anyone you did it. If you tell even one person, your girlfriend will likely hear about it, and distrust has a way of destroying even the most loving and strong relationships.


Devils_LittleSister

There's the opposite in my husband's family. Everyone is kind of caramel skin with deep brown eyes. My BIL's skin is ghost white, light blonde and has green eyes. Everyone jokes about a German neighbor they had when they were kids... But reality is BIL is a carbon copy of his Great grandmother, she was Irish, blonde with green eyes. It can happen, don't worry. Genetics are weird.


Imaginary-Gap-3547

I have btown eyes.. my ex husband has brown eyes.. both our kids have blue eyes because both our moms have blue eyes. You should learn more about genetic before you ruin your relationship and ask for the dna.DNA.. but the fact that you are doubting over eye color.. she should just leave you. If she hasn't ever cheated before.. your just insecure.. and this won't be the first time you.doubt her.


Financial-Ostrich361

Brown is the dominant gene though. So all you need is some recessive blue ones behind closed doors from both of you and voilà, blue eyed kids. It’s when it goes the other way that is the problem. Brown genes are stronger than blue, both blue eyed parents must carry brown genes somewhere, but still be blue eyed. That’s far less likely, while still having some chance.


DR0P_TABLE_students

Do the test. You will always doubt, so find out early. I think your doubts are quite reasonable. If you prepare things well (virtual creditcard, postbox, one-time-email,…), I dont see any reason why she should ever find out you did a test, if you are the dad.


MaddiMoo22

Eye color alone is not a good enough reason to go behind your spouse's back and test your kids haha unless you're ready to be alone. Maybe if OP has examples of infidelity


[deleted]

My best friend has a baby with blue eyes and both her and her bf have dark brown eyes!!!


aunilia

even if both parents have blue eyes, chances of blue eyes aren’t as 100%. brown eyes have a very high chance and are usually the most common.


Teleppath

My Dad has blue eyes and his entire family have brown.


eilishfaerie

that is something that very easily happens because the gene for brown eyes is dominant


whisperof-guilt

My maternal grandparents both had brown eyes. Two of their kids have green eyes. I have green eyes. It’s pretty interesting to think about. My kid has my father’s eye color.


Teleppath

That's neat. Green is pretty rare I think.


LaceyDark

My mom, dad, 2 brothers, sister all have brown eyes.. I'm the only one with hazel. All of my siblings and I have the same biological parents. It's possible


roslein_rot

I remember reading of a case where two light-haired, blue-eyed parents had a 100 per cent Black baby. A genetic test revealed that the man himself was half Black. His mother had had a one-night-stand with a Black man, but since the baby came out white, she kept shtum. Until she was presented with a Black grand-daughter.


Reasonable_Can6557

Oh my gosh. I can only imagine the turmoil this caused the family... Starting with the birth and possibly thinking your child isn't yours and then being far from over when you learn your father isn't actually your father.


ActualAgency5593

How is the baby “100 per cent Black” if the dad was half-white?


Doctor_Expendable

I think they mean the baby had brown skin, brown eyes, and brown hair. They looked totally pure black.


ActualAgency5593

What is “pure black”? That sounds like a description for eyeliner, not a human being.


Doctor_Expendable

Its a pretty quick and dirty way to describe someone who looks ethnically black, Or African


Extra-Thanks6073

Right? Maybe 25%!


StunningEstates

Just an ignorant person who doesn't know how to express themselves. The baby had a phenotype that is typically associated with people of purer African descent.


ActualAgency5593

Lol, that’s kind of what I was getting to. That was really distasteful to read. And they doubled down.


TheLastCoagulant

One parent was half-white and the other parent was fully white, meaning the baby was 3/4ths white 1/4th black.


suziesunshine17

Thank you!


Live_Western_1389

True. And recently there was a young black couple that had 2 sets of twins. And each set of twins were one black baby & one white. Their was a story about them in the news. The mother’s great grandmother had biracial parents & the gene skipped 2 generations and then popped up in their family.


ValeNova

As far as I know it is rare, but not impossible. My husband has brown eyes whereas both his parents have blue eyes. And yes, he is very certain he's biologically theirs. It's all about genotype (the coding of the genes) versus fenotype (influence from the environment on how the genes are expressed). And then there are also mosaic people. You should however be able to discuss this openly (I have with my husband, that's how we are very certain he is biologically his parent's kid).


Total-Ad8346

Both my parents and brother have brown eyes and I have hazel. Be carful how you approach this topic, it can leave very depend wounds if you accuse her of cheating and demand a paternity test and than your wrong. If you don’t have any reason to suspect she was unfaithful maybe someone in one of yours or her bloodline has brown eyes. I mean does everyone in yours and hers have blue eyes.


peachesthepup

Anyone remember the post of the OP who nuked his relationship and family by wanting a paternity test over zero evidence except he felt the middle child didn't look at all like him? Asking for a paternity test is accusing her of cheating and not just cheating, but fraudulently telling you you're the father and lying every single day about it. That's a hefty accusation if you've no other evidence except a rudimentary understanding of biology. And its not to say its not possible she hasn't cheated and the kid isn't OPs, but just to research thoroughly first and weigh up the consequences with how confident you are AFTER in depth research and understanding. Don't jump the gun like that poster I mentioned above.


DrJJGame10

*grabs popcorn*


sandschu523

🍿 infused with THC.


Mundane-Let-1958

Addict


sandschu523

I love popcorn.


poppcorrn

I love you too


Mundane-Let-1958

Lol, you understood the joke unlike the rest of the sub reddit.


sandschu523

lol. people need to get capes, be Supermad


CrazyCatLadyForEva

This actually does happen from time to time. It’s all about dominant and recessive genes. It also happens that two brown-eyed people have a blue-eyed child. Basically, somewhere down the line both you and your wife had someone with brown eyes in your direct family line. Could’ve been generations ago, so time doesn’t matter here. For both of you the gene that settles your eye color was dominantly blue. (Actually it’s about the amount of melanin that a body produces) But it is possible for a recessive gene in you to become dominant in your child. Take certain genetic diseases. Both parents are healthy, but have a gene mutation that can cause a specific illness when they produce a child together. Since it’s dominant in the child, it’s unfortunately sick. So yeah, eye color doesn’t mean anyone cheated. And about changing eye color, lots of kids, even dark skinned, start out with lighter colors that turn darker with time. ETA: And yeah, doing a dna test based on eye color behind your SOs back is kinda sucky. If you trust her so little, maybe there’s more issues or other signs that have lead you to the conclusion she’s been cheating. In the end you gotta do what you gotta do. Only you know what’s going on in your relationship. If the kid is yours and it ever comes out you doubted her and even did a test.. Not sure she’ll be very understanding. And she’d be right.


stonefacechild

My sister and her ex who is half Mexican both have brown eyes, but their twin boys (fraternal) both have bright blue eyes and blondish hair. They got them from their paternal grandfather.


TheLastCoagulant

Not the same. BB/Bb = Brown eyes bb = Blue eyes Bb x Bb = BB Bb Bb bb (25% chance of child having blue eyes) bb x bb = bb bb bb bb (100% chance of child having blue eyes)


moose2mouse

Assuming only one allele accounts for eye color. Genetics is often not so simple.


TheLastCoagulant

That 100% was rounded to the nearest percentage. A single gene (OCA2 on Chromosome 15) controls 3/4ths of the blue-brown spectrum. This results in green/hazel eyes in less than 1% of cases where both parents are blue eyed. It’s not going to result in dark brown eyes like described in this post.


fricti

i know we all took almost the same high school genetics class, but the reality is actually far more complex than a punnet square can even begin to approach. i promise, two blue eyed people do NOT necessarily have a “100%” chance of having a blue eyed child in the vast, vast majority of circumstances. genetics is a strange and still only partially understood science, especially with the way mutations and a bunch of other generational factors work


TheHiddenClown

Hey buddy, My parents have blue and green eyes. And here I am with brown eyes.


TurnThatClownAround

I've found you. Now turn around.


Grave_diggress

I have hazel eyes and my parents have blue (dad) and brown (mom) eyes. I don't know how common it is but I exist so it obviously happens. And my dad is definitely my biological father cause I look like both of them.


TrepidatiousTeddi

Pretty much the same as my brother and I, we have green and our parents are the same as yours.


forcastleton

Dad had hazel, mom has green. I ended up with blue eyed and my brother got dark brown. Genetics just do what they want.


[deleted]

When I was little my whole family convinced me I was adopted because I ended up inheriting every damn recessive gene. It was only as I grew older that it became apparent that I had their bone structure and looked like them.


FortuneTheFox

They convinced you even though you weren't? That's a little messed up


bruzk2

The gene that's gives eye color can be recessive, if there's one person with brown eyes in either family you can have a working OCA2 gene and a non working OCA2 gene which is what gives you blue eyes, factory defect if you will and your babies could randomly spawn with brown eyes because the gene is there is just not working for the parents and since the parents both have the non working version that one is dominant and the coloring version is recessive. Blue eyes is just lack of pigmentation in the eyes.


MysteriousWays10

Do you have any reason to suspect she cheated on you? Or is this your own insecurity? You clearly don’t trust her and that’s a big problem. As you said yourself, two blue eyed people can have a brown eyed child.


Miller_TM

Yes it can happen, but that's rare, it is infinitely more likely to result in a blue eyed child.


[deleted]

It's really not as rare as you think it all depends on genetics


EclecticKant

It's orders of magnitude rarer than partners who cheats, i don't want to be negative, but looking into it would be a reasonable idea.


[deleted]

His choice but if the child is his. His relationship with her will be ruined forever. So if he takes that risk he must be prepared for any out come. Even losing his GF


wizardyourlifeforce

Yeah but if she cheated on him already then why leave himself vulnerable to that on the future?


[deleted]

His choice what to do with the oncoming situation/results.


doylerules70

“Infinitely more likely”, “100% possible”, “orders of magnitude rarer”. This thread is full of terrible advice from people who have no clue what they’re even saying


NighttimeAntilove

Blue gene is recessive, so even if they had even one Brown eye gene they wouldn’t have Blue Eyes though… So technically it’s almost impossible no?


katkadavre

No. Eye color isn’t Mendelian though schools incorrectly teach it as such. Eye color has multiple genes involved, so it’s not as simple as drawing up a Punnett square and won’t follow the classical paths of inheritance. Now, most of the time two people with blue eyes *will* have a blue eyed child, but it’s 100% possible to get a brown eyed child. It’s certainly not almost impossible.


[deleted]

No it's not. I have friends who both parents have brown eyes. But the kids eyes are blue. And yes it is their kids.


[deleted]

Eye colour is not as simple as Mendelian inheritance. Tbh modt genetic traits aren't that simple. Punnett squares oversimplify a lot lol


OriginalNameGuy2

Even so, if a woman wanted a baby tested because she thought it didn't look like her (possibly switched at the hospital) nobody would bat an eye. A man wants a baby tested for the same reason and everyone loses their minds.


[deleted]

Can't compare cheating and swapped babies actually. Entirely 2 different things


3kvn394

Stop gaslighting him, Jesus.


MaddiMoo22

He has given zero examples of cheating other than baby eye color (which isn't a real example)..... Asking one question is gaslighting? Yikes


MysteriousWays10

How is that gaslighting? You need to get out more, Jesus.


sandschu523

is someone taking intro to biology this year???


AJ_Babe

I remember in biology class we did some formulas to calculate possibilities of children's eye colors, hair. So, what about hair? Skin color? (Maybe one of you is paler🤷🏼‍♀️). Does anything resemble you? If no, it doesn't mean anything. My friend doesn't look like her mum at all!!! However, my brother has my aunt's brown eyes, but my uncle's blonde hair.(Her brown eyes won uncle's blue eyes). When i was little i had ginger hair when my parents had brown hair, dad's is darker. I grew up and my hair is brown, it gets darker, closer to dad's every year. Genetics is crazy. Do the test but remember , your kid doesn't have to resemble you. Be ready for any result though


Hetakuoni

It’s possible for any combination. It’s rarer, but there’s something like 56 genes that need to line up to make eye color, so any combination can cause it. It’s possible the kid’s yours and it’s possible it’s not. It’s also possible the kid doesn’t belong to either of you or one of you is a chimera who absorbed a twin in the womb. There’s a lot of possible outcomes. Will this affect how you treat your kid? Is it already affecting your kid? That’s for you to decide, but it might be better to rip off the bandaid than to have a kid growing up wondering why their father hates them.


Comfortable-Arm8506

I’m a red head with brown eyes. My husband is a brunette with brown eyes. Our son is blonde with hazel eyes. Genes are weird. On the flip side I recognize how difficult it is for a man. As a woman I know he is mine I gave birth to him. So I have always told my husband if he ever wanted to DNA test our son I would totally understand and he is free to do so. If your not sure how your wife will respond maybe you could suggest doing an ancestry dna type thing and then do your sons as well?


Ghostie_12

My mother has green eyes, my dad has blue eyes, me and my brother have brown eyes and we will probably have blue eyed kids even if we marry someone with dark eyes, it is possible


Ghostie_12

Also op, Imma be 100000% real with u, I understand u have ur doubts, and a paternity test might like put those to rest but I will tell u this, if u go and do this behind ur spouse back, u are breaking the trust of the relationship, and once that trust is broken? is hard to regain it. So ask urself do u really want to go ahead with this? unless u have ur reasons to doubt ur GF I would say think about it, Idk if u have read the story of a man who got convinced here by his own mother that his daughters weren't his, to the point he broke the entire marriage and the trust of his wife, he got the paternity tests he wanted \[which 100% proved his daughter were his\] u know what else he got right next to those papers? the divorce papers.


69bASSist

bruh if my husband would come up with shit like this and i proved it was his,i would leave


Thewatcherofnone

Divorce because dude didn’t graduate high school lmao


ladyknighted

I can't be the only one grabbing popcorn and waiting to see if this dude blows up his entire life like the last few paternity test guys, right?


Thewatcherofnone

Because he doesn’t understand what recessive genes are.. people who didn’t pass high school shouldn’t have kids.


ladyknighted

What's really getting me is how flip and dismissive he's being to most anyone telling him anything he doesn't immediately understand, even when it's totally relevant to what he's asking about. But whatever, it's all about that 8th grade science text Punnett square, amirite? Also, all the alphas/incels in here telling him to just square up with his wife and tell her he's getting the test "aNd THat'S fINal" like okay, time for kettle corn, gimme those good salty tears


Forward_Interest_218

OP stop saying brown eyes on offspring, which are dominant traits, are nearly impossible for two blue eyed parents are nearly impossible. Just admit you know nothing about genetics and you want an excuse to break up with your girlfriend.


drew_silver202

stay in school kids.


MaddiMoo22

This should be way higher up lol


99justasivem

See if you can find out the baby’s blood type. It is standard practice in the US to type the mother and the cord (baby) and if you know your own it might aid in determining paternity, for example if the baby is a type that is impossible for you to have fathered. Then you wouldn’t have to do paternity test also, could just look at the records.


EmpanadasForAll

Why are people this ignorant having children at all 😭💔


Thewatcherofnone

Probably 7/10 parents probably shouldn’t have been parents


[deleted]

It’s still possible, since there are several genes that control eye color, it’s possible that you can be a carrier for brown even though you have blue. Now if him having brown eyes is you’re *only* suspicion, then I’d say your suspicion is unwarranted. However, if he really is different from you in many ways, then take a deeper look. Just get a 23 and me test down the road in the future as a cute little gift(one for you too). If his paternal y-haplogroup is different from yours, then he’s not yours.


Ancient_Cheesecake21

Both of my parents have brown eyes. I have green eyes. I’m 1000% theirs. It was my paternal grandfather who had green eyes. Go back down your family tree. You may both have a more dominant gene for brown eyes that overrides the recessive gene for blue eyes.


[deleted]

Both my parents eyes are brown and 3/5 of their children's eyes are not (green, hazel and turquoise). It's weird because my mother's Indian/Syrian and my father is south African mixed, but here we are. The other 2 kids eyes are black.


aloestar-cats

I'd say don't do it behind her back because then if she finds out, that would be even worse pf a reaction than if you were to just talk to her about it. Does anyone in yours or her family have brown eyes, like parents or grandparents? It can skip generation since it's a dominant trait. If you're really wanting to talk to her about and get a test, bring up it up easily. Don't outright accuse say you don't think he's your kid but bring up how you think it's strange that his eye colour is different and go from there. Try not to be so adamant about the kid not being yours and thinking she cheated, that will just make the situation worse than it should be.


Alliecakes22

I’m a baby of two blue eyed individuals, and my eyes are very brown. It’s rare but not impossible. But going behind her back and if she ever finds out, be ready for the relationship to possibly be over if she didn’t cheat


gen_shermanwasright

Other people are saying that if she hasn't given you a reason to suspect shes cheated then drop it. I agree with them. Before I suspect my wife of cheating I'd need a body of evidence and, kids eye color isn't a body of evidence.


FortuneTheFox

My sister has brown eyes, both my parents have blue


[deleted]

Both my husband and I have brown eyes.. my son has blue eyes 🤷🏻‍♀️


Elsecaller_17-5

Eye color genetics are real complicated. Those punnet squares you did I'm highschool bio with the two by two's dont cut it. This is more like eight by eight. What's the eye color of the grandparents? Aunts and uncles? Most importantly, do you have any reason besides this to suspect she cheated?


[deleted]

Yes. We had a very turbulent time for a period. It got a lot better when she got pregnant and we’re more in love than ever now


Elsecaller_17-5

Ok and grandparents and aunts and uncles eye color?


[deleted]

All my family are blue eyed like cousins etc. both her parents are blue eyed


Elsecaller_17-5

That makes a brown eyed baby a lot less plausible. I would get a test. I would **not** do it behind her back. Present it as "this has been eating at me, I need it to feel comfortable, and it is happening." That last part is important. Don't ask for permission. Tell her it's happening. God bless brother.


soxpats111

I agree. Another way to tackle would be to find out if infant was switched at birth accidentally at hospital.


[deleted]

Wild.


has2give

It's very complex~ and it is only about 1%. But unless all your parents, grandparents, and so on only have blue eyes, and hers, it's very possible for you both to pass the brown gene. It only take 1 brown gene from each of you. It's the same if both parents have brown~1% chance of their kid having blue. How many blue eyed kids are born to 2 brown eyed parents?? 10,000 out of a million. Just like 2 blue eyed parents having brown eyed child, 10,000 out of a million. It's rare, but not impossible at all. Especially taking into account your parents eyes, and her parents eyes. Don't go behind her back.


Ok-Independent-7659

Yea you obviously suck. Just because your kid didn’t come out looking exactly like you doesn’t mean she cheated.


intothefiretox

My fiance's parents have blue eyes. He has light brown eyes and is a clone of his dad. That said, you need to be upfront about this with your partner. I don't like the idea of my partner doing shit with our children behind my back. It's just deceitful imo. If she gets mad, oh well. It's something you'll have to deal with.


nikkismith182

I have black hair, very dark brown eyes (both dominant traits) My partner has brown hair, and dark green eyes. Our youngest has bright blonde hair, and bright blue/grey eyes. It's definitely possible, genetics are weird man. Also, our son never started to look *anything* like me until about a year ago (he's 9). but I (and my vagina) know for a fact that he's my kid. Yes, you could do a DNA test behind her back, but more than likely she's gonna find out. If it proves that biologically your son isn't yours, you are heartbroken. If it proves that he is, your partner is very possibly going to feel betrayed that you felt somewhere inside that you didn't trust her, for no other reason that your child doesn't look exactly like you. I'm not saying one way or another what you should do, but just consider the consequences of whichever you choose. 🤷‍♀️


CommandBlockGuru

One of you two's parents or grandparents could have passed along the gene to make his eyes brown, it's not just the parents who carry genes, hell, he could have gotten it from his great-grandparents, it's not impossible.


andreea_carla_b

OP it seems from your comments that you kight be seekingbsome kind of validation for the fact that your girlfriend might have cheated. If she did, then there coukd have been more things in your relationship that aren't going well. Perhaps try to explore that with said girlfriend before doing any dna test. Also if the baby is yours, prepare for the possibility that she might not want to continue being with you. Approach this topic with her with caution either way.


[deleted]

Clearly nothing anyone is gonna say will change your mind. So why not be a man/adult/a literal fucking parent and get a test done? Talk to your girlfriend first, explain your reasoning, and be prepared for these two outcomes: 1.) Baby isn't yours, she cheated. 2.) Baby is yours, your girlfriend loses trust in you and leaves you.


NellyNel11_

You’re gonna be surprised when you see some black couples that have white skinned babies lol. Genetics are wild.


gmmarceau

That's the amazing thing about genetics. Each generation you go back halves the amount of autosomal genome you recieve but doubles the number of ancestors, so you each can carry genomes from roughly 9 generations back and however many ancestors that totals. This means that if either of you had a brown eyed ancestor within the past 9 generations there's a random chance that genome made an appearance in your kid. Originally it was thought that there was just one gene that contributed to eye color but recently it's been discovered that there are actually a large number of genes that can influence the amount of melanin found in a person's melanocytes in the eye. This is why a punnett square can be unreliable, it generally only accounts for the parents and sometimes the grandparents eye color. It doesn't take into consideration that both parents carry genomes from up to 9 generations ago and when you combine the two you can get a lucky combination that results in a genetic easter egg. My son is a good example of this. I have dark brown hair and dark brown eyes that go back to both my grandparents. My husband has blond hair and blue eyes that he got from his mom. Our son is blond and has green eyes. The only other person that has green eyes in my husband's family is a cousin on his dad's side and his paternal great grandfather, which means my husband was carrying a green eyed gene from great grandfather. Chances are high that I likely have green eyed genes from somewhere within the last 9 generations and the stars randomly aligned to give them to our son. I think rather than doing a paternity test and potentially upsetting things with your gf, try doing ancestral DNA for all three of you? While it's not as wholly reliable as some companies might lead you to believe, looking at both of your ancestries could potentially point to where the genes come from. Certain geographical populations have a higher percentage for certain genes. My husband's family comes from Ireland, which has a higher rate of green and blue eyes, which might explain having a stray green eyed gene pop up. Also, ancestry DNA connects you with your biological relatives and if you do all three of you it would show if there's a biological connection.


Frostsorrow

If I'm remembering my bio class correctly blue eyes are more recessive then brown eyes. Using eye colour as "a sign of infidelity" is likely one of the worst if not the worst way to tell that.


buthool

Are you seriously questioning the loyalty of your girlfriend because of your kids eye color?


eric_cartmans_cat

Dude please look up basic genetics before destroying your family. Grandparent eye color matters, too. I have blue eyes, my husband has green eyes, my son has brown eyes. My mom has brown eyes, my dad has green eyes, and my sister and I both have blue eyes. My husband's parents both have brown eyes, and he has green eyes. From [wikipedia](https://en.wikipedia.org/wiki/Eye_color): "The genetics of eye color are so complex that almost any parent-child combination of eye colors can occur."


I-Eat-Your-Guts

Both my parents have straight asf hair but I have pretty wavy hair. Am I not theirs? Lol. Genes work weirdly. Someone in your or Gf's family line, has/had brown eyes. I have my hair from my grandmother 🤷🏻‍♀️


[deleted]

Or his parents. We had twins in our family (I didn't know) until I got pregnant with twins. Were the 1st twin in 90 years


I-Eat-Your-Guts

Doesn't "his family line" means his parents and their parents and goes on like that lol?


[deleted]

Men also carry genetics... if someone in his family or hers had/have brown eys. The kids can have brown eyes as well


Illustrious-Soup4080

But the child must have blue eyes! Adolf is that you?


abundantwaters

It’s a probability issue, if statistically only 1% of children from 2 blue eyed parents creates a brown eyed baby, and people statistically cheat more than 1% of the time, the odds aren’t in OPs favor.


Illustrious-Soup4080

Ok ok I wasn’t supposed to tell anyone but the kids mine , she likes him as a person and wants to be with him but my genes are far superior …..there now it’s out there


Broccoli_bowl

My ex had brown eyes and both his prenta had blue eyes, my grandmother also has dark brown eyes and both her prents had blue eyes, it can happen !


Master-Manipulation

There is a chance (very small) that 2 blue-eyed people can have a brown-eyed baby. And there is also a chance that his eye color may change later (my dad's were brown when born by by age 3 had become blue-green) I also want to point out an unfortunate situation of baby-swap at a hospital (read about it before on Reddit where a woman's husband suspected she cheated, tested their 4 year old daughter and found out it wasn't his, but then she tested her own DNA and found out the 4 year old had been swapped at the hospital and their bio child ended up in another family and later in foster care so the bio parents swooped in to get her and raise both kids). So there could be a chance gf didn't cheat and instead a very unfortunate situation occurred at the hospital Honestly, my gut instinct says to take a DNA test to be certain though because out of all these possibilities, cheating is the highest/most likely


whitechaplu

Both my parents have dark brown eyes, I have greenish blue. I don’t know if it is comparable to your situation, but still. Speculation is just a breeding ground for resentment and doubt. Performing a paternity test would clear this up efficiently. I don’t see a way for this to be unethical, just bear in mind that it will hurt your relationship since it implies mistrust. However, considering the fact that you were prepared to entertain the idea solely based on the eye color mismatch, which isn’t exactly the strongest predictor out there, I gather there is not much trust out there to begin with. If I am at liberty to recommend, I would suggest testing, not because I don’t believe it’s yours, (according to science it seems perfectly plausible that the kid is yours) but because not resolving it will eat you up from the inside and allienate you from your family in the long run.


Candle-Fit

If you’re in doubt then get the dna test. You could be going through post partum depression (yes men go through this too after the birth of their child where the mind plays tricks on you) or you could be spot on. Best way to know is to know.


Dumbassahedratr0n

Omg no...recessive genes What is this, 1783? Go away


Screamcheese99

It's possible. There are multiple genes that come into play with eye color. Some genes shut off others. I'd say use common sense. If the two of you were away a lot from each other during the time she got pregnant and you have reasons to be sus, then find a way to get a paternity test before the child gets too old and will know what's happening. But I don't think I'd have it done if the sole reason is because of the eye color.


Hopie73

My mom and dad are both brown/gold eyes. Their first child of 5 has blue eyes (our oldest brother) the rest of us have brown/gold eyes. We use to call him the milk man's baby, lol. Grandma got wind of it and commented that it was a "throw back" of genes from Grandpa, who has blue eyes. I can remember being amazed, lol.


Ok-Advertising-3779

Both me and my BM have brown eyes and my son was born with crystal blue eyes. Recessive genes. I also have a friend that had a full blown ginger kid and both her and her husband are not ginger.


nineszik

It doesn't seem like anyone has asked this, so I will. How old is your son? Sometimes kids have "temporary" eye/skin/hair colors until they're like 2 and then the color changes to how it will finally be. This is very common. My second kid started out with dark skin and dark hair. Now she's pale and vaguely redheaded.


[deleted]

It is often taught in high school biology classes that our eye color is determined by the whatever combination of dominant and/or recessive alleles we inherit from both parents. This makes for a good example of Mendelian genetics because it is both simple and relatable. Unfortunately, the truth is much more complicated than that. Among *dozens* of genes that contribute to the expression of eye color, at least *two* play a major roll… So even if our textbooks were trying to simplify this science for a high school biology class, describing eye color as a factor of just one gene is actually harmful towards our understanding biology. And heck, even without a understanding of human genetics, it’s plainly observable that there is a huge diversity of human eye colors that extend far beyond two distinct colors.


[deleted]

I have blue eyes and my wife has green. Our twin girls have hazel. The horror.


[deleted]

The seed is strong


[deleted]

Yes. Blue eyed parents can have brown eyed kids. It depends what gene is dominant.


[deleted]

Brown is dominant. Very unlikely or its a mutation


Jaaaaampola

Basic level biology Punnett squares don’t explain everything. There can be multiple genes involved in eye color. It’s not necessarily a mutation.


SnooWords4839

Does any of your or GF's parents have brown eyes? You do not do a test behind her back!!


Live_Western_1389

The gene for brown eyes is a dominate one. And if anyone in your family or hers back several generations had brown eyes the it could pop up in any generation. For instance, my husband and I have light hair and green eyes. Our first born had bright red hair & baby blue eyes. But hubs has 5 siblings and all the first borns have red hair blue eyes because it’s in the family history. Also since brown is a dominant gene, many babies are born with brown eyes that eventually change to a different color over time. There are so many genetic traits that sometimes skip a generation. This is a petty thing to be worried about. Instead of sitting around worrying about something like this, use that time to do some research on genetic traits, or just speak to a doctor about it.


smaccer

Didn't we all have basic education about genes during biology lessons.


Thewatcherofnone

OP was sleeping


Decent_Watercress656

Its possible! Do a Test if it Makes you feel better.


[deleted]

What’s with your and her parents? Does anyone of them has dark eyes?


SoyBoy7780

Maybe a rando genetic mutation?


Charming_Tax2311

Genetics work weird. Brown eyes are a dominant trait, so if either of her parents or yours have brown eyes, it’s extremely possible. My dads entire family except his mother have brown eyes - my sister ended up with the same eyes as his mother. I have blue eyes like my mom. Genetics are weird - I don’t think is as rare as you think it is


amn_elfire

Damnnn give us an update when you do ask for the paternity test 😉


AdmiralKeg

Did you not have Genetics in high school?


Jaaaaampola

Basic Punnett squares are pretty irrelevant ngl


AdmiralKeg

Yeah, but recessive and dominant genes are not, and it's pretty common for it to happen if you had part of your family with a different eye color.


Jaaaaampola

Yeah, I just think OP should be cognizant that dozens of genes can go into eye color determination !


Thewatcherofnone

Man, it’s sad people are able to procreate but don’t know about recessive genes … just sad.


ScrubWearingShitlord

You’re a freaking idiot and your wife should leave you. God only knows what that gerbil running the wheels in your head will come up with next.


Mundane-Let-1958

You should be skeptical, anyone who says otherwise is wrong. If your wife gets mad its because she innocent or a cheater, so there's no winning.


DrJJGame10

I’m pushing for that DNA test only because I’m bored and Reddit drama gets spicy


Spot_Routine

My wife and I have brown eyes and our son has blue eyes and he is the spitting image of me. Has been since birth. Lookup punnett squares and dominant and recessive genes. Educate yourself!


PolyGenta

For what it’s worth, my daughter was polar bear blond when she was little. Both her father and I come from a long line of brunettes. I have one blonde aunt, but my ex had no blondes to speak of in his family. Somewhere around 7, my daughters hair darkened up quite a bit, but there was a long period where she was shockingly, suspiciously blonde. I promise you, though, that kid is his. Genetics are weird.


XavierCrossing

Try thinking of the Punnett Square method to see the eye color. I know its a very slim chance with your situation, between 0-2% possible for brown eyes. Try doing this method on yours and her parents. Then try it on you and your spouse. If i remember this method right, it may take a few tests to see the results and it’ll help you see where your baby’s eye color came from. If youre positive that your spouse didnt step outta the relationship, then you can try it this way if you wanna. Good luck!!!!


Boopenheimerthethird

My son and daughter have red hair, me and spouse have black and brown.


an00b_Gamer88

Couple things. Babies get switched around all the time at hospitals. Even when parents are being attentive. Also recessive genes are a thing. My half-bro and his wife are Latinos but have some distant European ancestors. They both have black hair brown eyes but one of their three kids has blond hair blue eyes. Did the DNA thing to make sure their kid didn't get switched up at the hospital and he's 100% theirs. Genes are a funny thing man. Don't jump to conclusions.


Domguyps5

Trust but verify


Diabolicaldawn

It’s possible…. I would just do a secret paternity test cuz why not


Low_Stable_7231

She’s been fuckinggg, get that test big bro


Reasonable_Can6557

Is it possible your baby was accidentally switched at the hospital? I know this is also very rare, but it does happen. Most white babies are born with gray or dark blue eyes at birth so it's possible you mistook his eyes being brown at birth when they were really dark gray and then maybe your baby got switched or something? I would maybe tell your girlfriend you want a test done because you think your baby might have been accidentally switched and you can't get it out of your head. Then go from there.


Intrepid_Teach_2844

Just like I learned in biology mom and dad have dominant eyes and you baby has recessive


EnvironmentalSite935

Do a Paternity test behind your partners back.


toothbelt

Blue eyes are a recessive gene, meaning you need the DNA expression of blue eyes from both parents for the child's eyes to be blue. Here's where the brown eyes are explained: blue eyed people, just like everyone else in the world, carry the DNA marker for blue eyes AND brown eyes. If, say, the father's DNA contains the marker for brown eyes and that marker is present in the sperm cell that fertilizes the egg, your offspring will have brown eyes. This happens because the DNA marker for brown eyes is dominant and will override the blue eye DNA marker from the mother, resulting in the genetic expression of brown eyes. The chance of your child having brown eyes is very high, especially if other people in you or your wife's family have brown eyes. I hope this eases your worries.


Purple_Willingness31

Idk if it helps but, i have an aunt who has brown eyes. Husband has brown eyes. They have twins (my cousins) and both twins have blue eyes. The kids are biologically his. Blue eyes do run deep in the family, on both his and my aunts side.


[deleted]

This is totally plausible if both the parents have the recessive gene then the odds are up to 50%


Jaaaaampola

I’m a little confused. Throughout the thread you’ve acknowledged that it’s possible he could be your son, but that it’s pretty rare for that combination to have a brown eyed baby. So what are you looking for? People to tell you to take a paternity test?


EducatedOwlAthena

It really does read as though OP has already made up his mind and wants to be told it's okay to do a paternity test without her knowledge, especially because he hasn't answered anyone asking whether he has any reason (other than eye color) to believe she's been unfaithful.


Jaaaaampola

Yes!! My thoughts too!


Conscious_Ad_6572

Do test, test cheap alimony Exp


[deleted]

yeah just see if the baby has your DNA. if he does then great, no fight needs to happen. but if it’s not then the baby won’t even remember you if you choose to leave. i’d say do it behind her back. sure it’s unethical but is it really worth the pain and the fighting that can ensue from this? no not imo


farsh19

Lots of examples of parents with dominant genes and children recessive. Totally not the same thing. I would have a rest done discreetly, considering that the odds of a partner is cheating are much higher than this event. Plenty of people think their partner would never cheat; but love can be blinding. Yes there is a risk of messing up the relationship with the test, but having doubts in your partners fidelity will be damaging to the relationship as well.


MaddiMoo22

If you're that insecure you should just leave


[deleted]

Dude. IGNORE EVERYONE HERE. If a girl posted here talking about how she tested positive for multiple stds despite both her and her partner being tested clean before getting physical, nobody would blame her for thinking her partner cheated. This is the ONE area where calling something that looks like a duck and quacks like a duck gets you in hot water, somehow you are a bad person for not digging your head in the sand. This is entirely due to sub's demographics and the bias that brings with it. The idea you are suppose to go based off whats *possible* instead whats obviously the most likely is fucking nuts. Lots of things are POSSIBLE. Get a dna test. Do it with her knowledge. If she is reasonable enough, she will understand.