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Question

Identify the plasmid

A
EcoRI
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B
pBR 322
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C
AIUI
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D
Hind III
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Solution

The correct option is B pBR 322
The pBR322 plasmid is an E. coli vector. It was constructed in the year 1977 in the laboratory of Herbert Boyer. In pBR322, the p stands for “plasmid” and the B and R for "Bolivar" and "Rodriguez”, respectively. It is 4361 base pair long and contains ampicillin and tetracycline resistance genes.
So, the correct answer is 'pBR322'.

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