The Bicoid Mutation (Bcd^-) in Fruit Flies Is Inherited as a Maternal

Multiple Choice

The bicoid mutation (bcd^-) in fruit flies is inherited as a maternal effect recessive allele. What is the expected ratio of phenotypes in the offspring of a cross between a bcd⁺/bcd^- female and a bcd⁺/bcd^- male?

A) 1 normal : 1 mutant
B) 3 normal : 1 mutant
C) 3 mutant : 1 normal
D) all normal
E) all mutant