What Determines A Person To Have Hazel Eyes?

Question

In Science We Have To Find Our Why Our Eye Colour Is What It Is. I Am A Mixed Race N I Have Hazel Eyes My Mother Has Blue Eyes While My Father Has Light Brown Eyes How Come I Have Hazel Eyes Though?

Answer 1

Like many human characteristics, eye colour is determined at least partially by genetics. This is where your parents' characteristics are passed onto you and your siblings via your genes.

As with most genes, people have two copies of the gene controlling eye-colour (one from each parent). You only need one copy turned 'on' to make enough melanin to have brown eyes. Obviously the same applies to your parents, so a brown-eyed parent could have one or two 'on' copies, but a blue-eyed one must have two 'off' genes.

So, if your father has brown eyes, he might have both genes turned 'on', or just one. If he gives you an 'on' copy then you will have brown eyes, whatever colour eyes your mother has. The same applies to your mother. If she gives you an 'on' copy then your eyes will be brown. If you get an 'on' copy from each parent then your children's eyes will be brown too. You can still get blue-eyes from two brown-eyed parents, but only if they both have one 'on' and one 'off' copy and they both give their 'off' copy to you. If this were the case, you should have three brown-eyed siblings for every blue-eyed one (although you would need a lot a brothers and sisters to test this).

This is continued at

http://www.bbc.co.uk/dna/h2g2/A734933

Answer 2

genetics

Answer 3

genes.

Answer 4

Do either of your grandparents have hazel eyes? Because most likely one of your parents carried the recessive gene of the hazel eyes. and it was dormant for one generation and came back up in yours. we have that in our family. my parents are left handed both of their parents arent but their grandparents are. and me and my siblings dont have it either. if you are confused you can email me and i will give you more information on  how you got the recessive gene, but i am sure u will learn about dominance and recesive in science. [e-mail]

Answer 5

Generally, hazel is the mix between green and brown.

Answer 6

people like ur grandparents or even ur great-grandparents couldv had hazel eyes. since brown is a darker color than blue, it wouldv covered the blue so u cant even c it, which means the hazel eyes r a dominant trait. so since blue eyes r a recessive trait, it means it would b rare to get blue eyes.