5. In Drosophila flies, the allele b gives a black body, and the allele b* gives brown, the wild-type phenotype. The allele wx of a separate gene gives waxy wings, and wx" gives non-waxy. The allele cn of a third gene gives cinnabareyes, and cn* gives red. Afemale heterozygous for these three genes is testcrossed, and 700 progenies are produced which are phenotypically classified as follows: 3 b* wx* cn* 63 b wx*cn+ 25 b* wx cn* 2 b wx cn 252 b* wx* cn 33 b wx* cn 75 b* wx cn 247 b wx cn* Make a linkage map of the three genes. Compute for interference and explain what the derived value means. Show complete solutions to support your answers.
5. In Drosophila flies, the allele b gives a black body, and the allele b* gives brown, the wild-type phenotype. The allele wx of a separate gene gives waxy wings, and wx" gives non-waxy. The allele cn of a third gene gives cinnabareyes, and cn* gives red. Afemale heterozygous for these three genes is testcrossed, and 700 progenies are produced which are phenotypically classified as follows: 3 b* wx* cn* 63 b wx*cn+ 25 b* wx cn* 2 b wx cn 252 b* wx* cn 33 b wx* cn 75 b* wx cn 247 b wx cn* Make a linkage map of the three genes. Compute for interference and explain what the derived value means. Show complete solutions to support your answers.
Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter13: Genes, Chromosomes, And Human Genetics
Section: Chapter Questions
Problem 8TYK: Another gene in Drosophila determines wing length. The dominant wild-type allele of this gene...
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