Exam 3 Review & Notes

7 which arrow represents the correct posion and

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Unformatted text preview: + cells, a small number of leu+trp+ recombinants were isolated. These arose from: a) F+ cells ma.ng with F- cells. b) Hfr cells ma.ng with F- cells. c) Transduc.on. d) Transforma.on. e) Cell fusion. 5.In a ma.ng of a popula.on of F+ leu+ trp- cells with F- leu- trp+ cells, a small number of leu+trp+ recombinants were isolated. These arose from: a) F+ cells ma.ng with F- cells. b) Hfr cells ma>ng with F- cells. c) Transduc.on. d) Transforma.on. e) Cell fusion. If an F- cell acquires a leu+ gene, the most obvious answer is that it mated with an Hfr cell, and when the F factor in the genome replicated, it ended up taking leu+ along with it. leu+ 6. Hfr101 transfers genes in the following order: lac- pro- leu- thi, with trp transf...
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