The blue stays hidden until two people with a hidden blue happen to both pass a clear and a blue to their child. Now the child has blue eyes. But how can a brown eyed person pass a “clear card?” It is because we have two copies of most of our genes. read more
These two facts provide one explanation for how blue eyed parents can have a brown eyed child. To understand how, a little genetics refresher course is in order. People have two copies of most of their genes. read more
Yes, two brown-eyed people can have a blue-eyed child, though eye color genetics is more complicated than a simple Mendelian trait. read more
Yes, they can, and this actually follows the most simple rules of genetics. Blue eyes are, generally speaking, recessive to brown eyes. Say "B" is a gene f read more