Home Biology Biotechnology Principles and Processes NCERT In gel electrophoresis the DNA fragment sepa…
Biology Biotechnology Principles and Processes NCERT Single Correct MCQ
Published on: August 12, 2026

In gel electrophoresis the DNA fragment separate according to their size through sieving effect, which is provided by:

A
Agarose gel
B
Nylone membrane
C
Polyethylene glycol
D
Ethidium Bromide

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The correct answer is:
A

In gel electrophoresis, the sieving effect that separates DNA fragments according to size is provided by the agarose gel matrix, which acts like a molecular sieve.

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