In humans, the presence or absence of dimples is a trait controlled by a single gene. What is the genotype of an individual who is heterozygous for dimples?
A)DD
B)Dd
C)dd
D)DI

Question

Quizplus · Accepted Answer

A heterozygous individual has two different alleles for a trait, so for dimples, it would be "Dd" where "D" is the dominant allele for dimples and "d" is the recessive allele.

In Humans, the Presence or Absence of Dimples Is a Trait