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The first construction of a recombinant DNA molecule (1972) was achieved by

AWatson and Crick
BCohen and Boyer
CMendel and Morgan
DGriffith and Avery
Answer & Solution
Correct answer: B. Cohen and Boyer
1. syllabus credits the first recombinant DNA to Stanley Cohen and Herbert Boyer in 1972. 2. They isolated an antibiotic-resistance gene from a plasmid. 3. Linked it with a native plasmid of Salmonella typhimurium. 4. Transferred it into E. coli, where it replicated using the host's DNA polymerase. _Source: syllabus Biology, Ch 9 "Biotechnology: Principles and Processes", §9.1_
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