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(A) : In agarose gel electrophoresis, DN...

(A) : In agarose gel electrophoresis, DNA moves towards the positive electrode.
(R) : DNA is a negatively charged molecule.

A

If both (A) and (R) are true and (R) is the correct explanation of (A).

B

If both (A) and (R) are true but (R) is not the correct explanation of (A).

C

If (A) is true but (R) is false.

D

If both (A) and (R) are false.

Text Solution

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The correct Answer is:
A
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During agarose gel electrophoresis , DNA moves

A: During gel electrophoresis, the DNA fragments move towards the anode. R: DNA fragments are negatively charged molecules .

In agarose gel electrophoresis, DNA molecules are separated on the basiS of their

In agarose gel eletrophoresis DNA molecules are separated on the basis of their:

In electrophoresis , the DNA sample is loaded in the gel

Given below are four statements pertaining to separa- tion of DNA fragments using gel electrophoresis. Iden- tify the incorrect statements. (a) DNA is negatively charged molecule and so it is loaded on gel towards the Anode terminal (b) DNA fragments travel along the surface of the gel whose concentration does not affect movement of DNA. (c) Smaller the size of DNA fragment larger is the dis- tance it travels through it. (d) Pure DNA can be visualized directly by exposing UV radiation. Choose correct answer from the options given below

Assertion : Small DNA fragments will arrange towards the positive end after gel electrophoresis in DNA test. Reason : DNA is negative charged.

Assertion (A): DNA is positively charged molecule. Reason (R) : DNA moves towards the positive electrode (anode).

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