An individual with (naturally)curly hair and an individual with (naturally)straight hair mate; all of their offspring have (naturally)wavy hair. What is the relationship between the alleles for hair texture?
A) pleiotropy
B) incomplete dominance
C) wavy hair is dominant to both straight and curly hair
D) codominance

Question

Quizplus · Accepted Answer

This is an example of incomplete dominance, where neither allele is dominant over the other and the phenotype of the heterozygous offspring falls in between that of the homozygous dominant and homozygous recessive parents. In this case, the curly allele and straight allele are not dominant over each other, resulting in wavy-haired offspring.

An Individual with (Naturally)curly Hair and an Individual with (Naturally)straight