Textbook Question
The maternal-effect mutation bicoid (bcd) is recessive. In the absence of the bicoid protein product, embryogenesis is not completed. Consider a cross between a female heterozygous for the bicoid alleles (bcd⁺/bcd⁻) and a male homozygous for the mutation (bcd⁻/bcd⁻).
Predict the outcome (normal vs. failed embryogenesis) in the F₁ and F₂ generations of the cross described.
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