NEET Biology question

The gene 'rop' present in the pBR322 cloning vector codes for:

(A)The proteins involved in the transition
(B)The proteins involved in the replication of the plasmidCorrect
(C)The proteins involved in the synthesis of ampicillin only
(D)The proteins involved in the synthesis of tetracycline only

Answer: (B)

Solution

The rop gene does not encode ampicillin or tetracycline synthesis (those are unrelated antibiotic-resistance genes carried separately on the plasmid) and

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Question ID VK-125237