The rDNA produced by Boyer and Cohen was introduced into ________ bacteria.

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Salmonella typhimurium

Agrobacterium

Salmonella panama

E.coli

answer is A.

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Detailed Solution

The rDNA produced by Boyer and Cohen was introduced into E.coli bacteria.

Boyer studied a couple of restriction enzymes of the E. coli bacterium.These enzymes have the capability to cut the DNA strands in a particular fashion, which leave ‘sticky ends’ on the strands.

Cohen studied about small ringlets of DNA, plasmids that can replicate independently. Cohen had developed a method of removing these plasmids from the cell and then reinserting them in other cells.

Boyer and Cohen combined their knowledge to recombine antibiotic resistant gene to a plasmid from Salmonella typhimurium and insert this recombinant DNA in host bacterial cells.This is the basis upon which the discipline of biotechnology was founded.

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