If big feet (B) in schmoos is dominant to small feet (b), the genotype of a big-footed schmoo with respect to the foot gene can
A) only be bb.
B) only be BB.
C) either be Bb or BB.
D) either be bb or BB.
E) either be bb and Bb.

Question

Quizplus · Accepted Answer

If big feet (B) in schmoos is dominant to small feet (b), the genotype of a big-footed schmoo with respect to the foot gene can either be Bb or BB. This is because the phenotype (big feet) is only expressed when at least one dominant allele (B) is present, and the individual could have received either a dominant allele (B) or a recessive allele (b) from its parents. Therefore, the possible genotypes are either heterozygous (Bb) or homozygous dominant (BB).

If Big Feet (B) in Schmoos Is Dominant to Small