2007-10-12 02:54:29 · 48 answers · asked by Anonymous in Pregnancy & Parenting ➔ Pregnancy
NO It takes 2 recessive genes to get the blue eyes, so all that could be passed from the parents to the child are genes for blue eyes...Since the child gets one gene from each parent, one of the parents would have to have brown eyes to pass the dominant gene to the child for the child to have brown eyes.
2007-10-12 02:59:27 · answer #1 · answered by Coolrogue 6 · 2⤊ 4⤋
Two brown eyed parents can have a blue eyed baby because blue is a recessive gene. The other way around is NOT true because you need two recessive genes to have blue eyes.
Like this:
Blue = bb
Brown = BB or Bb
The "bb" will mean blue eyes.
The "Bb" means brown with a recessive blue gene.
The "BB" mean brown with no recessive gene.
Two parents with "Bb" gene have a 25% Chance of having a blue eyed child.
The reverse is not possible because two parents with "bb" will never produce a "BB" or a Bb" gene as the "B" is NOT in the equation.
2007-10-12 03:14:08 · answer #2 · answered by Annie 4 · 2⤊ 0⤋
It is very unusual for two blue eyed parents to have a brown eyed baby. If all the babys four grandparents have blue eyes as well as the parents then the chances are practically nil.
2007-10-12 05:13:58 · answer #3 · answered by ELLE T 3 · 1⤊ 1⤋
2 brown-eyed human beings can actual have a blue-eyed toddler. considering brown eyes are dominant, the two mum and dad must be carrying a recessive blue-eyed gene. in the event that they the two bypass on that blue-eyed gene, the toddler could have blue eyes.
2016-12-18 05:32:18 · answer #4 · answered by ? 4 · 0⤊ 0⤋
no the blue eyes gene is recessive - that means that if a parent has a blue and a brown gene that the brown will always come out. to make a blue eyed baby both parents must have two blue eyes genes.
same for blonde hair incidentally
2007-10-12 03:07:40 · answer #5 · answered by Femme 3 · 2⤊ 1⤋
The genetics of eye color are not really for brown vs. blue, green or hazel it's more light vs. dark. Dark is dominant, light is recessive.
So if you have dark eyes, you can have either one recessive light allele or both dark. If you have blue eyes you have to have both alleles for light eyes. So while it's possible a dark eyed person could have a light eyed child with that one recessive allele, a light eyed person has to have both recessive alleles so no, I don't think they would have a dominant (dark eyes) allele to pass on.
2007-10-12 03:16:14 · answer #6 · answered by dunefangirl 2 · 1⤊ 0⤋
I think maybe so. Remember all that passive/recessive genes stuff we learned in school when we were teenagers? Well, I've since found out that inherited traits aren't quite as simple as we were led to believe... My husband and I are both left-handed (which would be a recessive trait); both of our two sons are right-handed. Now, one would think that if either my husband or I had a right-handed gene at all, we would be right-handed because it is a dominant trait, right? So how did both boys end up right-handed? Turns out there is something more complicated going on in the genes.
So, even if both parents have blue eyes (the "recessive" trait), I bet they certainly can have a brown-eyed child.
By the way, both my husband and I have light eyes (he blue and me green) and both of our boys do, too (one blue and one green), so I don't have any direct evidence there.
2007-10-12 03:01:01 · answer #7 · answered by Anonymous · 3⤊ 3⤋
Yes, we learned that at school and I know personally about someone. My aunt is blond, blue eyed and very light skin.
Her husband is dark and their daughter had brown eyes and married a man with brown eyes. Their baby had blue eyes and looked just like my aunt. Everyone said If I had brown eyes and so did my wife I would wonder why my baby had blue eyes. He just laughed and said "you haven't seen my mother in law have you?"
2007-10-12 02:59:39 · answer #8 · answered by cloud 7 · 3⤊ 2⤋
Yes, provided that one parent has a brown eyed parent or grandparent. Brown is dominate, but there can be strong recessive genes that would cause one of the blue eyed parents to be blue eyed rather than brown.
2007-10-12 02:58:44 · answer #9 · answered by erin7 7 · 2⤊ 4⤋
no becuase blue eyes are ressiceve so in order to have bl;ue eyes you would have two lil bs and brow is dominant two big Bs and if you cross to little b parents (with blue eyes) it is impoosible to have an out come of two big B's or even just one which would give the child brown
2007-10-12 06:52:25 · answer #10 · answered by Anonymous · 1⤊ 0⤋
Yup--eye color is not simply recessive/dominant, and may be carried on more than one gene. So while unlikely, since blue is the recessive gene, it is POSSIBLE that blue-eyed parents have brown-eyed offspring.
2007-10-12 03:06:39 · answer #11 · answered by Amber E 5 · 1⤊ 2⤋