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In conjugation of HFr cell with F^– cell the recipient ______________

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In conjugation of HFr cell with F^– cell the recipient ______________

(a) Stays F^–

(b) Become F^+

(c) Become HFr

(d) Become F’

The question was asked by my college professor while I was bunking the class.

Origin of the question is Genetic Recombination topic in section Genetic Recombination of Drug Biotechnology

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Right answer is (a) Stays F^–

For explanation: Since entire plasmid cannot transfer the recipient remains F^–. Hfr cell can transfer a portion of the bacterial genome. The bacterium receiving the genes do not become F^+.

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