Color of Baby's Eyes

This is what I learned in science class in the 9th grade.

You have blue eyes, so you have the recessive gene of: bb

he has brown eyes, so he definately carries the dominant gene, but could either be: bb, or bb. It depends on if one of parents or grandparents have light eyes. If his whole family has brown eyes, he is most likely: bb. If family members have light eyes, he is possibly: bb

so... If he is bb, then out of 4 babies, all will have dark eyes, but will carry the recessive gene

if he is bb, then 2 out of 4 babies have the chance to have light eyes, the other 2 will have dark eyes, but will carry the recessive gene.

The editor changed all of my letters around.... I'll repost it

This is what I learned in science class in the 9th grade.

You have blue eyes, so you have the recessive gene of: bb (lowercase)

he has brown eyes, so he definately carries the dominant gene, but could either be: capital "b" capital "b", or capital "b" lowercase "b". It depends on if one of parents or grandparents have light eyes. If his whole family has brown eyes, he is most likely: capital "b" capital "b". If family members have light eyes, he is possibly: capital "b" lowercase "b".

So... If he is capital "b" capital "b", then out of 4 babies, all will have dark eyes, but will carry the recessive gene

if he is capital "b" lowercase "b". , then 2 out of 4 babies have the chance to have light eyes, the other 2 will have dark eyes, but will carry the recessive gene.

Well, they will certainly either be blue or brown.... Right? Does it really matter? Besides, all babies' eyes are blue at first...

No it doesn't really matter. I was just curious, that's all. I know that all baby's eyes are blue at first, but I was wanting to know the end outcome of their eyes. I just thought it would be fun to research it.

My daughter was born with deep huge brown eyes & still has them so not all babies are born with blue eyes, although my son was born with blue eyes.

Hi
if both parents have the recessive blue gene then the baby will have blueys. The recessive blue gene occurs if in both sets of grandparent only one of the grandparents have blue eyes. My husband and I both have brown eyes, and his mum and my dad have blue eyes, and we have a beautiful blue eyed girl (something I never expected!) I kept expecting her eyes to change but the midwives said that eye colour can change up to 6 months old so just bear this in mind

I know this post is over a month old, but I wanted to say my sister has blue eyes, and her husband has brown eyes. My sisters parents (mine too of course) have blue eyes, and her husband's parents have brown eyes. Both my sister's kids were born with blue blue eyes, and now as they are getting older, they are changing a gorgious hazle!! So that could be another color possibility for you.

My mom has brown eyes, dad has grey eyes. My sister has green, my brother has hazel and I have brown.
I don't know if that means anything, but it is just left in the hands of fate I guess!

The chances differ! My hubby's mother has brown eyes (her mother with blue and her father with brown) his father has brown (not sure about his parents) and my hubby ended up with green eyes. I have brown eyes (my mother does also) her mother had brown eyes and her father blue) i'm not sure about my father (i don't know who he is) and with me having brown eyes and mike (my hubby) having green eyes: mikey (our oldest) has brown eyes, zoe (middle child) has blue eyes, and ghaleon (youngest) has brown eyes. Its just crazy!

~jennifer~

Isn't genetics interesting!!

My mom had green and my dad brown with a blue recessive.

I had brown eyes when I was little, but now I have green eyes!

Eye color is completely random. All this stuff about science is nonsense when it comes to eye color. I took a college level genetics class and my friend is a genetic counselor. No one has figured out eye color completely yet. It's not a single gene trait, it's a multiple gene trait. So, it's not as simple as capital b and lowercase b. They are so many different factors that go into it that it can't be determined by what color the parents have. (which has been demonstrated here several times) so, best wishes for a healthy baby no matter what color their eyes are!

How is hair color determined? I was just curious, but I have dark dark brown hair with red highlights (natural by the way) and my husband has brown hair. My mom has auborn hair, my dad has black hair. My husbands mom has brown hair his dad has blondish brown hair. Hmmmm, don't know how it works, but i'm assuming that dark hair is dominent.

I didn't mean completely random. And I went to that place of learning for four years....No longer go there. I have my degree. Genetics is very interesting and I almost considered majoring in biology and then going to grad school for genetic counseling like my best friend did.

But there are no "dominent" and "recessive" genes in eye color. There are some colors that are believed to be either dominent or recessive but it can't be proved. Here's an except from an explanation:

" at one time scientists thought that a single gene pair, in a dominant/recessive inheritance pattern, controlled human eye color. The allele for brown eyes was considered dominant over the allele for blue eyes. The genetic basis for eye color is actually far more complex. At the present, three gene pairs controlling human eye color are known. Two of the gene pairs occur on chromosome pair 15 and one occurs on chromosome pair 19. The bey 2 gene, on chromosome 15, has a brown and a blue allele. A second gene, located on chromosome 19 (the gey gene) has a blue and a green allele. A third gene, bey 1, located on chromosome 15, is a central brown eye color gene."

at present, there are 3 pairs of genes that control color. But that's at present. Years from now they may find more. So there goes the dominant/recessive theory the article can be found here:

http://www.Seps.O rg/cvoracle/faq/eyecolor.Html


and there are many more articles like that out there. I know what I learned in college. I had an excellent professor. I apologize for saying completely random. I didn't mean it like that. I meant completely random as in a baby could get its grandma's eyes or father's eyes
or sister's eyes. All depends on the multiple genes at work.

Hey,
you ladies never answered my question.

Sorry for not answering....I was little irked by the last lady's suggestion that I attend another college. Even though, I was correct all along.

enough venting. Hair color is a lot simpler...That does follow the dominant/recessive theory. Yes, brown is dominant. Blonde and red are recessive. Some colors are dominant over other colors. Like blonde may be dominant over red, even though they are both "recessive". I have all that info from my genetics class but it's in storage.

Search the interent for genetics and hair color and you should get a pretty good idea.