Biology Biotechnology Principles and Processes All Topic Question For Revision Test Single Correct MCQ
Published on: August 12, 2026

First rDNA was made using -

A
Plasmid for antibiotic resistant gene of Salmonella
B
Plasmid for antibiotic resistant gene for Selaginella
C
Plasmid for disease resistant gene of Salmonella
D
Plasmid for disease resistant gene of Selaginella

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The correct answer is:
A

The first recombinant DNA was constructed by Stanley Cohen and Herbert Boyer using a plasmid carrying an antibiotic-resistance gene from Salmonella.

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