PATHOLOGY

Detailed explanation-1: -Human Connection Curly hair and straight hair are incompletely dominant alleles of one gene. A person with two curly alleles will have very curly hair. A person with two straight alleles will have straight hair. A person with one curly and one straight allele will have wavy hair!

Detailed explanation-2: -Some studies (described later) considered fibre curliness as a race-independent descriptor, but these were minimal. Research results for ‘curly fibres’, based only on samples of African ancestry, present genotypic fibre features as though they are phenotypic, being representative of all curly fibre features.

Detailed explanation-3: -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.

Detailed explanation-4: -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.