Assertion : The matrix used in gel electrophoresis should have controllable pore size.
Reason : Agarose concentration can be changed to change pore sizes.

Agarose gel electrophoresis separates DNA molecules of size.

Assertion (A) : Agarose gel electrophoresis is used to check the progression of a restriction enzyme digestion. Reason (R) : Restriction enzyme digestions are performed by incubating purified DNA molecules with restriction enzyme.

Assertion : For measuring resistance of an ionic solution an AC source is used. Reason : Concentration of ionic solution will change if DC source is used.

Assertion (A): For measuring resistance of an ionic solution an AC source is used. Reason (R): Concentration of ionic solution will change if DC source is used.

The most commonly used matrix in gel electrophoresis is agarose, which is a natural polymer extracted from :-

Assertion: For measuring resistance of an ionic solution on AC source is used. Reason: concentration of ionic solution will change if DC source is used.

Assertion: In Gel electrophorosis, ''the smalller the fragment size, the farther it moves'' Reason :The separation of DNA segments by cutting out the gel is known as elution