1.

In and interrupted mating experiment, it is seem that the after 10 mins AziR gene in recipient, after 20 minuites there is appearance of tonR and after 15 mins the recipient is lac+ , but the recipient is almost never his+. Where in the genome is the ori of transfer?

A. Between AziR and TonR genes
B. Between TonR and Lac+
C. Between Lac+ and His+
D. Between His+ and AziR
Answer» E.


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