Two persons who have recessive genetic deafness marry and have 6 children.All the children can hear.The reason they can hear is most likely due to
A)epistasis.
B)pleiotropy.
C)sex linkage.
D)complementation.
E)partial penetrance.

Question

Quizplus · Accepted Answer

The most likely reason that all the children can hear even though their parents have recessive genetic deafness is due to complementation. This means that the deafness in the parents is caused by mutations in different genes, and the deafness phenotype is only expressed when both mutations are present. Since each child inherits a different combination of these recessive alleles, none of them have the combination that would cause deafness. This phenomenon is also known as "genetic complementation."

Two Persons Who Have Recessive Genetic Deafness Marry and Have