NEET BIOLOGY

Detailed explanation-1: -The curly hair allele (HC) and the straight hair (HS) alleles show incomplete dominance .

Detailed explanation-2: -Hair type is an interesting case of something called incomplete dominance. What this means is that with hair type, if you have one of each version of the gene, you get a mix of the two or wavy hair. So for hair type, CC gives curly, Cs gives wavy and ss gives straight hair.

Detailed explanation-3: -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-4: -It has been long established that curly hair is a dominant trait in Caucasians and straight hair is recessive.

Detailed explanation-5: -Children born with semi-curly or wavy hair are an example of individuals exhibiting incomplete dominance because the crossing of parents alleles both straight and curly hairs to produce such offspring. Thus, incomplete dominance occurs to produce an intermediate trait between the two parent traits.