Ch. 7: EXAMPLE QUESTIONS Multiple choice. Assume that a cross is made between AaBb and aabb plants and that the offspring fall into approximately equal numbers of the following groups: AaBb, Aabb, aaBb, aabb. These results are consistent with the following circumstance: A. independent assortment. B. alternation of generations. C. complete linkage. D. incomplete dominance. E. hemizygosity. Methods for determining the linkage group and genetic map in humans involve which of the following? A. syntenic testing and lod score determination B. twin spots and tetrad analysis C. tetrad analysis and bromodeoxyuridine D. zygotene and pachytene DNA synthesis E. chiasmatype and classical analyses Short answer. Assume that there are 12 map units between two loci in the mouse and that you are able to microscopically observe meiotic chromosomes in this organism. If you examined 200 primary oocytes, in how many would you expect to see a chiasma between the two loci mentioned above? What is the expected evolutionary significance of genetic recombination? True or false. Mendel predicted that some genes will be carried in the same chromosome. In Drosophila, the frequency of crossing over in males is about equal to the frequency of crossing over in females. Ryan Garrick Microsoft Word - Ch7_example_questions.docx
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