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

In agarose gel elcetosphoresis -

A
DNA migrates towards the negative electrode
B
Supercoiled plasmids migrate slower than their nicked counterparts
C
Larger molecules migrate faster than smaller molecules
D
Ethidium bromide can be used to visualized the DNA

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The correct answer is:
D

Ethidium bromide binds to DNA and fluoresces under UV light, making DNA bands visible.

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