2007-03-24 07:48:14 · 8 answers · asked by Miranda B 2 in Science & Mathematics ➔ Biology
Your eye colour is determined by your genes. When you are made two sex cells join: one from your mother and one from your father. These cells to some extent determine what you will look like.
Each gene is made up of two alleles: these can be either dominant or recessive (a dominant allele dominates a recessive allele). Eye colour will be determined by your parents for example: if both your parents have brown eyes and their alleles are the same (homozygous brown) or (BB) the child will definitely have brown eyes.
It is however possible for a person with brown eyes to have a blue eyed allele. Blue is recessive: therefore if you have 1 blue allele and one brown allele you will have brown eyes. Your gene will be (Bb) B= brown and b=blue. If two people with this gene (Bb) have a child there is a 1 in 4 chance that it will have blue eyes.
Because the blue allele is recessive you will only have blue eyes if your gene is (bb). Therefore two blue eyed people will definitely have a blue eyed baby.
Green is the most recessive eye colour this means that both blue and brown is dominant over it.
Most babies are born with blue eyes and this can change over time. The only other way to change your eye colour is with contact lenses,
Hope this helped.
2007-03-24 09:22:19 · answer #1 · answered by Anonymous · 0⤊ 0⤋
This Site Might Help You.
RE:
What determines eye color? Is it possible for it to change? If so, how and why?
2015-08-16 14:55:13 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Your eye color is completely determined by your parents and grandparents and so on.
And to changing it- Yes you can change it, but only with contacts
2007-03-24 08:10:42 · answer #3 · answered by Kimberly E 2 · 0⤊ 0⤋
No, it's not. Eye color can change if you damage the eyes, but I certainly wouldn't recommend that. There are some colored contact lenses though.
2016-03-13 13:27:31 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Eye color is determined by genetics. In infants, it is common for their eye color to change, but it will usually stabilize in about 6 months. It is also possible for someones eye color to change, but it will be constantly changing; that is, if your eyes were blue for years they will not suddenly turn green.
2007-03-24 07:55:34 · answer #5 · answered by j 4 · 0⤊ 0⤋
eye colour is a character determined by the genotype present. it is inherited as a genetic trait on the chromosomes, 1 paternal and 1 maternal. it is not possible to change the colour under normal circumstances.pathologically t may happen.
2007-03-24 08:00:03 · answer #6 · answered by rara avis 4 · 0⤊ 0⤋
A variety of things determine eye color, but it's mostly your diet, and if you started eating other foods, then your eye color started changing...
2007-03-24 07:52:29 · answer #7 · answered by Apples69 2 · 0⤊ 3⤋
well actually, the eye color dont change.. its just the mood your inn, that makes your eye color to go into what is called a deep discoloration. this again is afected by your mood.. ex if you have hazle eyes,, when i get mad+green, when sad=gray, and when mad=clear honey.. i honestly just like you had the same question..i didnt even believe that my eye color changed.. or again just a "deep discoloration" which is affected by your mood.. i hope this helps..
2007-03-24 08:13:03 · answer #8 · answered by Anonymous · 0⤊ 1⤋
genes donated from the [arents
brown eyes are dominant and blue eyes are recessive
2007-03-28 03:50:13 · answer #9 · answered by ~*tigger*~ ** 7 · 0⤊ 0⤋
the pigmet in the iris can determine it but genes may be another cause but its not common
2013-10-23 12:14:59 · answer #10 · answered by Sharon 1 · 0⤊ 0⤋