Solve this:

155.  Which one is incorrect with respect to gel electrophoresis :-

(1) Wells for DNA sample loading are made at anode
(2) Largest bands of DNA lie far away from anode
(3) Smallest bands of DNA lie near to anode
(4) Both (1) and (3)


 

Dear student.

The answer is  (1) Wells for DNA sample loading are made at anode.

Wells for DNA sample loading are made at cathode (-ve), and they will move towards anode (+ve). DNA is negatively charged molecule, so they will migrate towards positive anode.

Regards.

 

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