Me and my partner both have brown eyes…
My side of the family have all brown eyes so I’m assuming we don’t have the blue eye gene.
My partners parents: his dads side have all brown eyes but his mother and aunts and grandfather have blue eyes. So my husband must be a carrier.
Will my brown eyed genes dominate his blue eye genes or is it possible for a blue eyed baby?
It’s so interesting how it works
In: Biology
Brown eyes genes are dominant to blue eye genes. This means that if a person has both brown and blue eye genes they are going to have brown eyes. Therefore you can’t really tell if your side of the family has blue eye genes or not. Any person’s blue eye genes will be concealed if they also have brown eye genes, but they can still show up down the line
If they happen to match with their partner’s blue eye genes. So in short it’s possible that you both carry a combination of brown eye and blue eye genes. In that case the probability of having a blue eyed child is 1/4. Then again, if at least one of you only has brown eye genes, which is also entirely possible, then the probability of having a blue eyed child is zero (bar random mutation).
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