Essay
The genes for zeste eyes and forked bristles are located on the X chromosome in Drosophila melanogaster.Both genes are recessive.A cross is made between a zeste-eyed female and a forked-bristled male.
a) If 200 offspring from this cross were obtained,present the expected number,sex,genotype,and phenotype in each class of the F₁.
b) If the F₁ offspring were crossed to produce 800 flies of an F₂ generation,present the expected number,sex,and phenotype in each class.Assume no crossing over.
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(a) z⁺ᶠ/ᶻ ᶠ⁺ = wild female (10...View Answer
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