![]() ![]() ![]() A small amount of this pigment is present in all hair colors. ![]() Pheomelanin is responsible for the red hair color. The less eumelanin, the lighter the hair will be. Melanin, which affects hair color, is of two types: eumelanin and pheomelanin.Įumelanin makes the hair dark, and its amount is responsible for how dark it will be. In fact, genes carry information not about certain colors but about the amount of the same kind of pigment, which determines the shade of the hair. Even if your hair is dark, you may have a version of the gene responsible for light hair color, and this is the version you can pass on to your child. Many genes are responsible for hair color. Two dark alleles produce dark hair, and two light alleles produce blonde hair.īut this is a very simplified model. For example, if a child has a dark-hair allele and a light-hair allele, the hair will be dark. Alleles can be dominant (main) and recessive (suppressed by the dominant version).Īs a rule, the alleles responsible for dark color (hair, eyes, etc.) dominate over light colors. One allele is from the mother, the other from the father. Chromosomes contain genes that are responsible for the sex of the child, eye color, hair color, personality traits, and many other things that make us unique.Įach gene comes in two versions called alleles. The child receives 23 chromosomes from the mother and 23 chromosomes from the father, forming a set of 23 pairs of chromosomes. Hair color is determined at the time of conception. And hair color is one of the features that one can try to predict based on the hair color of parents and other relatives. Long before giving birth or even before pregnancy expectant mothers are trying to imagine how their baby will look like. ![]()
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