NEET BIOLOGY

Detailed explanation-1: -The genotype for black hair color is represented by the letter “B The genotype for blonde hair is represented by the letter “b.” You inherit two black alleles for hair color.

Detailed explanation-2: -Most people have two functioning copies of the MC1R gene, one inherited from each parent. These individuals have black or brown hair, because of the high amount of eumelanin. It is estimated that more than 90 percent of people in the world have brown or black hair.

Detailed explanation-3: -The allele for black hair (B) is dominant over brown hair (b) and the allele for brown eye (E) is dominant over blue eye (e). Out of the offsprings obtained upon mating a black haired and brown eyed individual (BbEe) with a brown haired and brown eyed individual (bbEE).

Detailed explanation-4: -There is no specific and separate term for someone with black hair. However, people have suggested the term noirette. Note, also, that although the term brunette includes those with black hair, not everyone may agree.