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

Multiple Choice

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.