NEET Biology question

The plasmid used to construct the first recombinant DNA was isolated from which bacterium species?

(A)Escherichia coli
(B)Salmonella typhimuriumCorrect
(C)Agrobacterium tumefaciens
(D)Thermus aquaticus

Answer: (B)

Solution

Escherichia coli was the host into which the recombinant plasmid was later introduced (not the source of the original plasmid), and Agrobacterium tumefaciens and Thermus aquaticus are unrelated to this historic 1972

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Question ID VK-125204