Q.

If pBR322 is incorporated into E. coli, the E. coli shows resistance to the following antibiotics

A. Ampicillin

B. Penicillin

C. Streptomycin

D. Tetracycline 

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a

A and D

b

C and D

c

A and B

d

B and C

answer is C.

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Detailed Solution

detailed_solution_thumbnail

pBR322 has the genes for resistance to ampicillin and tetracycline as markers. Hence, E. coli with pBR322 insert shows resistance to these antibiotics.

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