Biology Biotechnology Principles and Processes All Topic Question For Revision Test Single Correct MCQ
Published on: August 21, 2026

What are the properties of a good vector?

A
It should be ideally more than 10 kb in size
B
It should be able to replicate autonomously
C
It should not have suitable marker genes
D
It should not be easy to isolate and purify

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Text Solution

Verified by Experts
The correct answer is:
B

A good cloning vector should:

• Replicate independently inside the host cell (autonomous replication).

• Have suitable marker genes (e.g., antibiotic resistance genes) for selection.

• Be easy to isolate and purify.

• Generally be small in size, not necessarily more than 10 kb.

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