HardZoologyBiotechnology: Principles & Process
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The first recombinant DNA was constructed by linking an antibiotic resistance gene with a native plasmid of:
A
Salmonella typhimurium
B
Escherichia coli
C
Bacillus thuringiensis
D
Agrobacterium tumefaciens
Explanation
Stanley Cohen and Herbert Boyer accomplished this in 1972 by isolating the antibiotic resistance gene and linking it to the plasmid of Salmonella typhimurium[cite: 5].
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