genetics determining baby eye color?
931270
The answer depends on whether or not mom is a carrier for blue and/or green eyes or not.  If mom is not a carrier, then all of her kids will most likely have brown eyes.  If she is a carrier, then her kids will each have a 50-50 shot at brown eyes and a 50-50 shot at blue or green eyes.  (See http://www.thetech.org/genetics/ask.php?id=59 for how eye color works.)\n\nThere isn't any easy way to tell if someone is a carrier or not right now (no DNA test anyway).  If either of her parents had green or blue eyes, then she is a carrier.  But even if this is not the case, then it is possible for her to be a carrier.\n\nFor example, imagine that her great, great, great grandma had blue eyes.  She married someone with brown eyes and had brown eyed kids.  These kids would all be carriers. Now they marry brown eyed people and have kids.  Some of these kids would be carriers.\n\nNow they have kids with brown eyed people.  This goes on and on until one of these carriers meets another carrier or someone with blue eyes.  Now there is a chance for a blue eyed child.
721873
THAT PRETTY LAME IF YOU ASK ME.GENETICS AND GENES AND CHROMOSONES ARE THE CONSTANT ENVIRONMENTMENTALLY UNFRIENDLY OR MAYBE FRIENDLY COMPONETS THAT DESIGN A HUMAN BABY. HOW THE CHILD WILL APPEAR LIKE HAIR COLOR SEX EYE COLOR AND IF THEY CAN HEAR OR SEE ARE ALL GENETICALLY INSPIRED.IF YOUR A MALE TAKE A LOOK AT YOU OWN MOM AND HER DAD.IF YIUR FEMALE LOOK AT YOUR DAD AND HIS MOM.DNA WILL DEFINITELY GIVE YO AND IDEA WHAT YOU WILL APPEAR WHEN YOUR OLDER.
512854
genetics is the study of heredity and variation. most traits are inherited from the parents; sometimes it's the same as the father's, sometimes it's the same as the mother's, other times it's a combination of both and in some cases, the traits inherited can not be seen in any of the parents. \n\nlet's try to find out the probabilities or chances of inheriting the eye color trait... i think brown eye color is a dominant trait (B), and green eye color is probably recessive (b) so:\n\nif the father (or male/m) is heterozygous dominant for the trait (Bb) and the mother (or female/f) is most probably homozygous recessive (bb) then...\nm&#92;f b b\nB Bb Bb\nb bb bb\n-----------\n2 Bb : 2 bb\nor 50% chance of brown eyes and 50% chance of green eyes\n\nbut if the father (or male/m) is homoozygous dominant for the trait (BB) and the mother (or female/f) is most probably homozygous recessive (bb) then...\nm&#92;f b b\nB Bb Bb\nB Bb Bb\n------------\n4 Bb\nor 100% chance of brown eyes
49350
Any eye colour other than brown is caused by an absence of pigments in the iris. People inhabiting extreme latitudes usually have lower general pigmentation in order to get sufficient Vitamin D uptake through ultraviolet light. This is accompanied by a tendency to have lighter hair colour and less pigments in the iris.\n\nYou might call it a genetic defect which has proven useful.
193648
because light colored eyes are recessive to dark colored eyes. Dark colors are more dominant and stronger. As with most recessive genes, it is more prone to infirmity and weaknesses.
14575
Eye color is a complicated trait, because it is controlled by several genes. It is likely that all of the genes have not yet been found. So far, scientists have a model in which one gene can either be blue or brown, with brown being dominant, and the other gene being blue or green and green being dominant. The brown trait from the first gene overrides either blue or green on the second. So, if someone has the brown trait, they have brown eyes. This model obviously fails to explain hazel, gray, and various other multi-shaded eye colors.\n\nWhat these genes do is turn on melanin production in the eye, the same thing that determines skin color. The more melanin, the darker the eyes. The reason a baby's eye color changes is it is born with very little melanin, both in its skin and in its eyes. As it is exposed to sun, melanin production increases until they've reached the skin and eye color their genes code for.\n\nThis is unrelated to hair color, which is controlled by several genes as well.
801922
No.  The gene is carried on the X chromosome.  But it is a sex based trait.  The father passes a Y chromosome to his son.  The gene for color blindness has to come from the mother, she is the one who gives the X chromosome.\nIf the father and son where both color blind, it would be just due to coincidence.
1129008
Genetics.  Green eyes are a genetically recessive trait, just like blue eyes are.  Someone in your family also has green eyes.  Possibly a grandparent or great-grandparent.
901445
Eye colour, like skin and hair clour, is multifactorial. There are many factors which decide your colour. Brown is dominant, but not in the sense that if the brown gene is present, then your eye colour will be brown. Eye colour, fom least brown to most brown are: blue, grey/blue, green, hazel and then brown.
40716
I disagree with the one said blue eyes are dominant. Actually the gene of blue eyes is resessive. So if either one parents or grandparents have the gene of brown eyes, their offspring can more chances to get brown eyes than blue. Of couse, blue or brown eyes really depends on the genotype of the parents, not the phynotype. So if and only if both parents have blue eyes, they offspring have 100% chances to get pure blue eyes gene. \n\nSO if your eye color is brown, and your children are blue, that means that you have a blue eye gene, but because it is recessive, thus the phynotype of your eye color is brown. Your children would have 1/2 chance to get either blue or brown eye color in this situation.\n\nThe following link talks about the eye color in detail.
622793
My 4 year old sons eyes. He has the most gorgeous shade of blue eyes, with the center around his pupil being hazel/green. He has long, thick eyelashes as well...his eyes are sooooo pretty. He gets alot of women telling him he's gonna be a heartbreaker and that ladies are going to be in love with those eyes of his, lol.
72771
About the colour - can't be from surfing or from the sun. Two possible explanations:\n1) You had the gene from one of your parents fully expressed, and now the other parent's gene kicked-in and the colour of your eyes changed (happens a lot with hair colour).\n2) Ask your friends and find-out whether you all eat some kind of food regularly, especially red or orange vegetables. These vegetables have a stuff called carotene in them, and when you eat a lot of it your eyes tend to get coloured orange and a bit lighter. This is not dangerous in any way, but if you want it to stop just eat less carrots/tomatoes/etc.\n\nGood luck :).
579970
No that is not true.  Every baby gets half of their genetic coding from the father and half from the mother.  For things such as eye color we all have a dominate gene and a recessive gene.  Lets assume both parents have brown eyes, which means they have a dominate gene for brown eyes, but lets also assume that each of them have a recessive gene for blue eyes.  In this case there are 4 possible combinations of genes between the father and mother.  1. Father brown and Mother brown, 2. Father blue and Mother brown, 3. Father brown and Mother blue, and 4. Father blue and Mother blue.  In 1 through 3, the baby receives a dominate gene for brown eyes from at least one of the parents and the baby will have brown eyes.  In the final case the baby receives two recessive genes for blue eyes, resulting in a blue eyed baby.
463347
I believe eye color is sex linked.  I think wing structure is too (like normal versus vestigial).
922905
There really is no essential difference in the way\nthe genes are inherited.  The difference is in how\nthey affect the offspring.  In polygenic inheritance\nthere are many gene pairs involved, each of which\nhas a small effect and the effects of each pair are\nadditive with the others.  Such genes control things\nlike height, weight, skin color, etc.  The genes in\nwhat is usually called Mendelian inheritance have a\nlarger and more noticeable effect.  Actually the\nexamples given in biology courses are usually\nover simplified.  The case of eye color is a good\nexample.  What is usually taught is that brown eyes\nare dominant and blue eyes recessive, but this is\ntrue only if all other things are equal, that is, there\nare no other genes affecting eye color to interfere.\nIn the fruit fly there are dozens of gene pairs that\naffect eye color, and probably as many in human\nbeings.  My father had blue eyes, my mother has\nbrown eyes.  I have never been able to decide\nwhat color my eyes are.  They are sort of blue\naround the edges, yellow more toward the center,\nwith a reddish brown spot in one of them.  Also\nwhat about eyes that are described as green, gray\nhazel, violet?
265325
If both parents have blue eyes, then the child will have blue eyes.  Because blue eyes are a recessive gene, so, blue eyed people only carry blue eyed genes.\nOn the other hand, brown eyed people can be carrying a blue eyed gene, since brown is the dominant gene.  Two brown eyed people, both carrying one blue eyed gene, could give birth to a blue eyed child.\n\nMy aunt has brown eyes, but someone in her lineage had blue eyes.  My uncle has blue eyes.  They gave birth to 3 girls, all with blue eyes.  Which means my aunt was carrying the recessive blue eyed gene and passed it along to her children.\n\nBut, to your question, the only way to definitively say a child will have any particular color eyes is if two people with blue eyes have kids.  Then, the kids will have blue eyes.  In all other cases, the eye color of the children will be unknown.
1041372
Green eyes are more rare.  There is not an actual gene for green eyes, protein differences cause some eyes to be green.