What is the genotype of a dominant individual if, when selfed, some of its offspring show the recessive phenotype?
A) Either DD or Dd
B) DD
C) dd
D) Dd

Question

Quizplus · Accepted Answer

For an individual showing a dominant phenotype to produce offspring with a recessive phenotype when selfed, it must be heterozygous (Dd). This is because two copies of the recessive allele (dd) are required for the recessive phenotype to be expressed, indicating that the parent must carry one recessive allele to pass it on.

What Is the Genotype of a Dominant Individual If, When