Biology Biotechnology Principles and Processes Processes of Recombinant DNA Technology Single Correct MCQ
Published on: August 14, 2026

In isolation of genetic material (DNA) from nucleus, the RNA can be removed by ribonuclease and protein by protease. The purified DNA then precipitates after the addition of _________ .

A
CaCl 2
B
Ether
C
Chilled ethanol
D
Acetic acid

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The correct answer is:
C

Chilled ethanol is added to precipitate purified DNA, making it visible as threads.

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