Wednesday, December 2, 2009

What determines a baby's skin color... is skin color dominant/recessive like eye color?

My husband is hispanic (medium skin, black hair, dark eyes), and I am white, but tan easily (brown hair, dark eyes). Both his dad and my dad have blue eyes though.





Will our baby look more hispanic or more white?





Is the darker skin dominant? I would think so, but I've seen other mixed hispanic/white kids that could easily pass for white...What determines a baby's skin color... is skin color dominant/recessive like eye color?
Skin color is a multifactorial trait. Basically how it works is that through out your genome you have a certain number of pigment genes, known as melanin, and so does your husband. When you have a child, half of his pigment genes will come from you and half from his father. This produce a sort of average skin tone between the two of you.





This does depend on independent assortment so there is a bit of variation depending on how the chromosomes get split up during reproduction.What determines a baby's skin color... is skin color dominant/recessive like eye color?
75% chance dark eyes. 25% blue eyes.


Darker skin IS the dominant trait, so chances are, your baby will end up looking more Hispanic.
it all depends on what he gets, but theres a 3/4 chance he'll have dark eyes and 1/4 chance he'll have blue eyes

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