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Question

Construction of first recombinant DNA was done by using plasmid of

A
Salmonella typhimurium
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B
Escherichia coli
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C
Bacillus thuringiensis
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D
Saccharomyces cerevisiae
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E
Agrobacterium
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Solution

The correct option is A Escherichia coli
Recombinant DNA or rDNA technology was discovered by Stanley Cohen and Herbert Boyer. They inserted the rDNA molecule they created into E.coli by means of a plasmid, thereby inducing the uptake and expression of a foreign DNA sequence also known as transformation.
So, option B is the correct option.

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