Here are the results of the testcross: Green-eyes, wild-type wings 245 Green-eyes, miniature wings 232 Wild-type eyes, wild-type wings 250 Wild-type eyes, miniature wings 238 6.) In your opinion, is the grn gene on the same chromosome as the min gene? How do you know? Next, you set up another experiment to determine if grn is on chromosome #1. The only appropriate flies that you have handy are double-mutants for the black-body mutation (blk) and curved wings mutation (crv), but this should work just fine. First, you conduct a series of crosses to generate a strain of triple- mutant flies (grn blk crv). Then, you cross those with wild-type flies to generate triple hybrids. 7.) What are the genotype(s) and phenotype(s) of the progeny of this cross? Next, you set up a testcross to reveal any linkage between the three genes. 8.) What are the genotypes and phenotypes of this testcross?

Human Biology (MindTap Course List)
11th Edition
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cecie Starr, Beverly McMillan
Chapter20: Chromosomes And Human Genetics
Section: Chapter Questions
Problem 3CT: People with Down syndrome have an extra copy of chromosome 21, for a total of 47 chromosomes....
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Here are the results of the testcross:
Green-eyes, wild-type wings 245
Green-eyes, miniature wings 232
Wild-type eyes, wild-type wings 250
Wild-type eyes, miniature wings 238
6.) In your opinion, is the grn gene on the same chromosome as the min gene? How do you know?
Next, you set up another experiment to determine if grn is on chromosome #1. The only appropriate flies
that you have handy are double-mutants for the black-body mutation (blk) and curved wings mutation
(crv), but this should work just fine. First, you conduct a series of crosses to generate a strain of triple-
mutant flies (grn blk crv). Then, you cross those with wild-type flies to generate triple hybrids.
7.) What are the genotype(s) and phenotype(s) of the progeny of this cross?
Next, you set up a testcross to reveal any linkage between the three genes.
8.) What are the genotypes and phenotypes of this testcross?

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