Hello all, I was wondering how DNA works for eyes colors (recessive/dominant genes).
I’m an Asian mom (brown eyes) and my husband is Caucasian (brown eyes). Both our parents have brown eyes as well.
My first kid has brown eyes but my second has blue eyes. My husband’s maternal grandpa had blue eyes (would that explain the source of my second kid’s blue eyes ?).
Thanks for the explanation!
In: Biology
Eye colour isn’t as simple as did you get a recessive or dominant gene from your father and a recessive or dominant gene from your mother?
There are quite a few genes that are responsible for eye colour. There’s genes which determine how much melanin is produced overall, how much of it gets stored, how many places in the eye it gets stored and so on and so on and so on.
This can mean that there’s a lot of variation between eyes.
But yes, we can assume that a gene for blue came possibly from your husband’s maternal grandfather but it’s not that certain.
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