What must be present for albinism to occur?
A) heterozygosity
B) two dominant alleles
C) sex-linked alleles
D) two recessive alleles
E) polygenic alleles

Question

Quizplus · Accepted Answer

Albinism is an autosomal recessive trait, which means that two copies of the recessive allele are needed for the trait to be expressed. Therefore, for albinism to occur, two recessive alleles must be present.

What Must Be Present for Albinism to Occur