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Zoology-Recombinant DNA

NEET Zoology Recombinant DNA MCQ Question

Type: MCQ-fact-Medium-Class 12

What is the role of restriction endonucleases in the formation of recombinant DNA?

A

They cut DNA at specific positions within the DNA strands.

B

They add nucleotides to the ends of DNA molecules.

C

They separate DNA fragments by size during gel electrophoresis.

D

They facilitate the movement of DNA into bacterial cells.

Correct Answer

Option A

Detailed Explanation

Restriction endonucleases cut DNA at specific sites, which is essential for creating recombinant DNA by allowing the insertion of DNA fragments. This function is detailed in the NCERT context, which describes how these enzymes inspect and cut the DNA at recognition sequences.

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