2006-09-15 20:51:58 · 6 answers · asked by findinforest 2 in Health ➔ Other - Health
No - you were adopted
It works like this:
Brown eye colour is coded for by a gene we can call "B" (ie Big B)
Blue eye colour is coded for by a gene we can call "b" (little b)
You will have two genes telling your eyes what proteins to make here because you get one from mum and one from dad so you could be BB or Bb (or even bB which is the same) and bb
Now the B gene is dominant over the b gene as brown eyed people should be dominant over blue eyed people. It is natural, after all.
(Those blue eyed people get too much solar radiation and are therefore inferior - I saw it on TV so it must be true)
So if you have BB or Bb (or even bB) then you have brown eyes
If you have bb then you are an inferior blue eyed person.
If you have green eyes you are a mutant.
So furthermore, if your mum or dad is a BB then they will always pass on a B gene
If they are Bb then they will pass on B half the time and b the other half of the time
They must be one or the other cos they are superior brown eyed people as you state.
But what happens if they are both Bb and they procreate?
Dad can give a B or b
Mum can give a B or a b
Offspring will be
1/4 BB, 1/4 Bb, 1/4 bB, 1/4 bb
the Bb and the bB are the same so 1/2 are Bb effectively
OH NO! 25% of their offspring will be inferior blue eyed specimens!
Off to the labs with them at once!
If one of your parents is a BB then it doesn't matter who they procreate with! They will produce brown eyed offspring.
If they mate with a Bb or even if they deign to mate with a bb they will produce Bb (or the superior BB genotype if they were sane and mated with a BB or Bb) and so will in accordance with nature produce brown eyed children.
2006-09-15 21:06:04 · answer #1 · answered by Orinoco 7 · 0⤊ 0⤋
Yeah my chum who's a woman has blonde hair and blue eyes and so does her brother and sister yet her different brother has brown hair and brown eyes. Her grandparents had brown hair and blue eyes. yet quite her brothers look comparable apart from the dfference in hair and eye colour :)
2016-10-15 01:28:05 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Yes, you could have inherited a gene from a grandparent or great grandparent or even further back. My daughter has gray/hazel eyes but my son and hubby and I have blue. 2 generations back one great grandparent had gray/hazel eyes!
2006-09-15 20:55:03 · answer #3 · answered by still learning at 56 5 · 0⤊ 0⤋
of course it is. it all depends on genes. my mother has blonde hair and blue eyes and all my siblings have the same. my father has black hair and brown eyes and i have black hair and green eyes. i'm not sure where my green eyes came from but i guess anything is possible.
2006-09-15 20:58:22 · answer #4 · answered by jbslass 6 · 0⤊ 0⤋
yes y not in with my inlaws they all have blue eyes i have brown as do all my family so it will be interesting to see waht colour eyes our kids have
2006-09-15 20:56:48 · answer #5 · answered by bambi 2 · 0⤊ 0⤋
It's called "hereditry" you inherit some of your parents traits such as skin colour, hair colour, height etc.
2006-09-15 20:56:34 · answer #6 · answered by stevoledevo 2 · 0⤊ 0⤋