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

question 30

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

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