People who only have a little brown eumelanin have blond hair. Eumelanin gets broken down even further into brown eumelanin and black eumelanin - each of which are responsible for the corresponding shade of brown or black hair. Pheomelanin is responsible for red tones in hair, as well as the skin, lips, and even freckles.
It’s also worth mentioning pheomelanin and eumelanin, which are melanin pigments responsible for coloring black, brown, and red hair. That all said, predicting a baby’s hair color is more complex than a mini-genetics lesson can explain, partly because hair color can blend, and the final color can change as your child ages. Not everything they pass along is expressed, but we still have the ability to pass these traits on to our children.Įye and hair color is an example of how the dominant and recessive alleles you and your partner are carrying around can combine to create unique traits, like dark hair, dimples, blue eyes, or even a widow’s peak - even when these traits aren’t expressed by either parent. Each of our parents contribute portions of their DNA via their chromosomes that then become our own genetic code. To answer that, we’re going to need a mini-genetics lesson. It doesn’t take much to ripple the pond, though, which is where things like dominant and recessive genes, alleles, phenotypes, pigments, and blending come into play. Sure, you can always draw a genetic wildcard, but for the most part, if your entire family has one hair color the odds suggest that your baby will come out with whatever the fam is rocking. Predicting Hair Colorįor some, the big reveal will be pretty anticlimactic. Predicting a baby's hair color is one characteristic where a relatively accurate, educated guess can be made. While all physical traits are passed down through a complicated game of genetic chess, some are easier to predict than others. Wondering what your baby will look after they finally get here is par for the course when you’re an expecting parent.
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