AP PSYCHOLOGY

Detailed explanation-1: -Curly hair is considered a “dominant” gene trait. Straight hair is considered “recessive.” To put that in simple terms, that means that if one parent gives you a curly-haired gene and the other parent gives you a straight-haired gene, you’ll be born with curly hair.

Detailed explanation-2: -Hair color is inherited, and many genes are involved in the process. Sometimes, unexpected hair color can occur in a child because of a genetic mutation. Some of the genes involved in hair color also influence eye color and skin color. Hair color is the result of genetics.

Detailed explanation-3: -It turns out that brown hair is dominant. That means that even if only one of your two alleles is for brown hair, your hair will be brown. The blond allele is recessive, and gets covered up.

Detailed explanation-4: -Selection explains why different hair types exist at all, but for any given person, inheritance studies suggest that curly hair mostly follows the rules of Mendelian genetics. Curly hair is dominant, so someone is more likely to have curly or wavy hair if at least one of their parents does.