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Biology Biotechnology Principles and Processes NCERT Single Correct MCQ
Published on: August 13, 2026

Which is not required in the preparation of a recombinant DNA molecule out of the following?

A
Restriction endonuclease
B
E coli
C
DNA fragments
D
DNA ligase

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Verified by Experts
The correct answer is:
B

E. coli is used as a host for cloning, not for making recombinant DNA. Restriction enzyme, DNA ligase, and DNA fragments are required for its preparation.

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