Classical albinism results from a recessive allele.What is the expected ratio for the progeny when a fully pigmented male with an albino father has children with a fully pigmented female with no history of albinism in her family?
A) ¾ pigmented; ¼ albino
B) ¾ albino; ¼ pigmented
C) ½ pigmented; ½ albino
D) All pigmented
E) All albino

Question

Quizplus · Accepted Answer

The fully pigmented male with an albino father is a carrier (heterozygous) for the albinism allele. The fully pigmented female with no history of albinism is homozygous dominant. Therefore, all offspring will be pigmented, as they will inherit at least one dominant allele from the mother.

Classical Albinism Results from a Recessive Allele