NEET Biology question

**Statement 1:** The matrix used in gel electrophoresis should have a controllable pore size. **Statement 2:** Agarose concentration can be changed to change the pore size.

(A)Both statements are true and Statement 2 is the correct explanation of Statement 1
(B)Both statements are true but Statement 2 is not the correct explanation of Statement 1Correct
(C)Statement 1 is true but Statement 2 is false
(D)Statement 1 is false but Statement 2 is true

Answer: (B)

Solution

Both statements are true: a good electrophoresis matrix should have a controllable pore size (so that fragments of different size ranges can be resolved by choosing an appropriate pore size), and varying the agarose concentration is indeed one real, standard way of changing that pore size. However, Statement 2 only

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Question ID VK-125341