NEET2022Zoology-Biotechnology
NEET 2022 Zoology Gel Electrophoresis MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Which one of the following statement is not true regarding gel electrophoresis technique?
A
The presence of chromogenic substrate gives blue coloured DNA bands on the gel.
B
Bright orange coloured bands of DNA can be observed in the gel when exposed to UV light.
C
The process of extraction of separated DNA strands from gel is called elution.
D
The separated DNA fragments are stained by using ethidium bromide.
Correct Answer
Option A
Detailed Explanation
Chromogenic substrates are not used for visualizing DNA bands; instead, DNA is stained with ethidium bromide and visualized under UV light.
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