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Q. Read the following statements and find out the incorrect statements with reference to agarose gel electrophoresis.
(i) Now-a-days the most commonly used matrix is agarose which is a synthetic polymer extracted from sea weeds.
(ii) Larger the frament size, the farther it moves.
(iii) We can not see pure $DNA$ in $UV$ light without staining.
(iv) DNA fragments separate (resolve) according to their size through sieving effect provided by the agarose gel.

Biotechnology : Principles and Processes

Solution:

(i) Now-a-days the most commonly used matrix is agarose which is a natural polymer extracted from sea weeds.
(ii) Smaller the frament size, the farther it moves