NEET Biology question

**Assertion:** Restriction enzymes cut the strand of DNA to produce sticky ends. **Reason:** Stickiness of the ends facilitates the action of the enzyme DNA polymerase. **[NEET 2016]**

(A)Both assertion and reason are true and reason is the correct explanation of assertion
(B)Both assertion and reason are true but reason is not the correct explanation of assertion
(C)Assertion is true but reason is falseCorrect
(D)Both assertion and reason are false

Answer: (C)

Solution

The assertion is true: many restriction enzymes (e.g., EcoRI, BamHI) cut DNA asymmetrically to leave short single-stranded overhangs, or "sticky ends," that can base-pair with complementary overhangs on another fragment. However, the reason is false: it is **DNA ligase**, not DNA polymerase, whose

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Question ID VK-125317