Genetics Homework 4 - Genetics Homework 3 Due Sept 20th 1...

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Genetics Homework 3 Due Sept 20 th 1. Two Drosophila flies were mated that had normal (transparent, long) wings. In the progeny two new phenotypes appeared: dusky wings (having a semi-opaque appearance) and clipped wings (square end). The progeny were as follows: Females 179 transparent long 58 dusky long Males 92 transparent long 89 transparent clipped 28 dusky long 31 dusky clipped i. Provide a genetic explanation for these results, show the genotypes of parents and all of the progeny classes under your model. (5) ii. Does a chi-square analysis support your hypothesis? 2. When yellow mice are mated together, 2/3 of the progeny are yellow and 1/3 are agouti. Another locus governs the ability to produce pigment; when parents heterozygous at this locus mate 3/4 of the progeny are colored and 1/4 are albino. Yellow mice are crossed with the albinos and produce an F1 containing 1/2 albinos, 1/3 yellow and 1/6 agouti. a) What are the genotypes of the parents (use your own symbols)? b) If the yellow F1 mice are crossed among themselves, what
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Genetics Homework 4 - Genetics Homework 3 Due Sept 20th 1...

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