An offspring of parents whose genotypes are Aa and Aa may be
A)only AA.
B)AA or aa.
C)AA,Aa,or aa.
D)only aa.

Question

Quizplus · Accepted Answer

When two individuals with genotype Aa (heterozygous) mate, they can each pass on either the A or the a allele to their offspring. So, the possible combinations of alleles that an offspring might inherit are AA, Aa or aa. This means that the offspring could be homozygous dominant (AA), heterozygous (Aa), or homozygous recessive (aa). Therefore, the only choice that includes all possible outcomes is C.

An Offspring of Parents Whose Genotypes Are Aa and Aa