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Question: 6 pts the bicoid bd gene in drosophila is an...

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(6 pts) The bicoid (bd) gene in Drosophila is an autosomal maternal-effect gene Offspring produced by homozygous bicoid mutant mothers lack head structures and instead have posterior structures on both ends, an obviously lethal phenotype. (bd indicates the wild-type allele, and bd the mutant allele.) Is it possible for a female to produce a brood of embryos in which all of the embryos are homozygous bicoid mutants (bd bd)? If so, diagram a cross or set of crosses that would produce this outcome. If not, diagram a cross or set of crosses that demonstrate why this outcome is not possible. Briefly explain how the cross that you have diagrammed supports your answer. a. b. Is it possible for a female to produce a brood of adult progeny that are all homozygous bicoid mutants? Explain, using genetic crosses to support your reasoning where appropriate. Is it possible for a homozygous bicoid mutant mother to produce wild-type progeny? Explain. c.

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