A cross is made between two e. coli strains hfr arg?bio?leu, Ask an Expert

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A cross is made between two E. coli strains: (Hfr arg+?bio+?leu+) x (F? arg??bio??leu?). Interrupted-mating studies show that arg+ enters the recipient last, so arg+ recombinants are selected on a medium containing biotin and leucine only. These recombinants are tested for the presence of bio+ and leu+. The following numbers of individuals are found for each genotype: arg+ bio+ leu+ 320 arg+ bio- leu+ 0 arg+ bio+ leu- 8 arg+bio- leu- 48 A: what is the gene order B:what are the map distances in recombination percentages.

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Category:- Biology
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