Question

Assertion (A): In gel electrophoresis, DNA fragments get separated and move toward the anode. Reason (R): DNA fragments are positively charged molecules.

• A. Both (A) and (R) are correct, and (R) is the correct explanation of (A).
• B. Both (A) and (R) are correct, but (R) is not the correct explanation of (A).
• C. (A) is correct, but (R) is not correct.
• D. (A) is incorrect, but (R) is correct.

Hint:

Agarose gel electrophoresis separates DNA based on size, with smaller fragments moving faster toward the anode.

Answer 1

The Correct Option is C

Step 1: Understanding Gel Electrophoresis
- DNA is negatively charged due to its phosphate backbone.
- DNA fragments migrate toward the positive (anode) end of the gel.
- Since (R) is incorrect (DNA is negatively charged, not positive), the correct answer is option (C).