Homework Due 100410

Homework Due 100410 - I HAVE USED THIS ASSIGNMENT! IF YOU...

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I HAVE USED THIS ASSIGNMENT! IF YOU USE IT YOU WILL BE CAUGHT! 1. Two pure breeding corn plants at 3 loci are crossed, one homozygous WT, the other homozygous recessive. The F1 heterozygote (at 3 loci) is then testcrossed. The progeny phenotypes and numbers of the F2 are as follows: a + b + c + 455 a b c 470 a + b c 035 a b + c + 033 a + b + c 037 a b c + 035 a + b c + 460 a b + c 475 Total 2000 Not all genes are linked. Which ones are, and what is the map distance between them? Genes a and c are linked with 13.5 cM between them. 2. Drosophila females heterozygous for each of three recessive autosome mutations with independent phenotypic effects (thread antennae [th], hairy body [h], and scarlet eyes [st] were testcrossed to males showing all three mutant phenotypes. The 1000 progeny of this testcross were: wild type 429 thread, hairy 37 thread, scarlet 35 hairy 34 thread, hairy, scarlet 432 scarlet 33 ***Two hints for this question. First, consider that a double crossover event may be so
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Homework Due 100410 - I HAVE USED THIS ASSIGNMENT! IF YOU...

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