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

Read the following statement and choose incorrect one –

A
DNA is hydrophobic molecule, it cannot pass through cell membrane
B
By micro-injection, recombinant DNA is directly injected into the nucleus of an animal cell
C
During DNA isolation we used chilled ethanol in final step
D
Retroviruses have been used to deliver desirable gene into animal cells after disarming

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Text Solution

Verified by Experts
The correct answer is:
A

DNA is hydrophilic and negatively charged, not hydrophobic. Because of its large size and charge, it cannot easily pass through the cell membrane.

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