Assertion: Restriction endonucleases are also called 'molec…

Biology NEET Full Syllabus Mock Test 180 Questions New Syllabus Mock Test - 3 PCB Single Correct MCQ

Published on: August 21, 2026

Assertion: Restriction endonucleases are also called 'molecular scissors'.
Reason: When fragments generated by restriction endonucleases are mixed, they join together due to their sticky ends.
In the light of the above statements, choose the correct answer from the options given below:

Both and (R) are correct but (R) is not the correct explanation of(A)
is correct but (R) is not correct
is not correct but (R) is correct
and (R) are correct and (R) is the correct explanation of(A)

Both

Text Solution

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The correct answer is:

Restriction endonucleases are molecular scissors, which cuta DNA molecule within certain specific site called restriction site. Common restriction endonucleases are Eco RI, Bam II, Hind III, etc..

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