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CGP EDU Academic Team
Published on: August 14, 2026
Arber, Nathan and Smith isolated two enzymes from E. coli, out of which one enzyme used to -
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Verified by ExpertsThe correct answer is:
C
Arber, Nathans, and Smith discovered that one enzyme (methylase) protects the bacterium's own DNA by adding methyl groups, while the restriction enzyme cuts foreign (unmethylated) DNA.
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