Read the following statements and select the incorrect ones…

Biology Biotechnology Principles and Processes Statement Based Questions Single Correct MCQ

Published on: August 21, 2026

Read the following statements and select the incorrect ones –

In gel electrophoresis, DNA fragments separate according to their size through sieving effect provided by the agarose gel. , ,

Larger the fragment size, the farther it moves. , ,

Unless one cuts the vector and the source DNA with the same restriction enzyme, the recombinant vector molecule cannot be created. , ,

Now a days the most commonly used matrix is agarose which is a synthetic polymer extracted from sea weeds.

Text Solution

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The correct answer is:

Correct – DNA separates by the sieving effect of agarose gel.

Incorrect – Smaller fragments move farther, not larger ones.

Correct – Same restriction enzyme is generally used to create compatible ends.

Incorrect – Agarose is a natural polysaccharide extracted from seaweeds, not a synthetic polymer.

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