Biology Biotechnology Principles and Processes Cloning Vectors and Competent Host Single Correct MCQ
Published on: August 12, 2026

Which statement is incorrect?

A
T-DNA is present in Ti plasmid.
B
Retroviruses convert common cells to cancerous cells,
C
pBR 322 is a natural plasmid-
D
Agrobacterium tumefaciens is a natural genetic engineer

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Text Solution

Verified by Experts
The correct answer is:
C

This statement is incorrect because pBR322 is a constructed (artificial/recombinant) plasmid vector, not a natural plasmid. It was engineered in the laboratory for use in cloning.

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