Are brown eyes dominant?

What dominant means is if at least 1 of your two copies is brown, then you will have brown eyes. The way geneticists represent these two different versions of this eye color gene are B for brown and b for blue (the capital letter is always the dominant, the lowercase, the recessive). read more

Brown eyes are dominant. If you have a parent with blue eyes (bb) and a parent with brown (BB) there is a 75% chance you will have brown eyes (Bb,Bb,BB) and a 25% chance of blue eyes (bb). If one of your grandparents had blue eyes though, then your parent may carry the recessive which increases your odds to 50%. read more

So you will have brown eyes with either BB or Bb and blue eyes with bb. For gene 2, there are two possibilities, green or blue. Green is dominant over blue and so G usually represents green and b, blue. read more

The brown-eye gene is dominant and overrides the blue-eye gene, so all the children have brown eyes. However, if the father also carries a blue-eye gene and a child inherits one from each parent, that child will have blue eyes. read more