NEET2020Zoology-Molecular Biology

NEET 2020 Zoology DNA Replication and Repair MCQ Question

Type: MCQ-conceptual-Medium-Class 12

Choose the correct pair from the following:

(1) Nucleases - Separate the two strands of DNA

(2) Exonucleases - Make cuts at specific positions within DNA

(3) Ligases - Join the two DNA molecules

(4) Polymerases - Break the DNA into fragments

A

Nucleases - Separate the two strands of DNA

B

Exonucleases - Make cuts at specific positions within DNA

C

Ligases - Join the two DNA molecules

D

Polymerases - Break the DNA into fragments

Correct Answer

Option C

Detailed Explanation

Ligases are enzymes that facilitate the joining of DNA strands together by catalyzing the formation of a phosphodiester bond.

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