NEET UG 2025 · Zoology · Question 172
NEET 2025 Zoology, question 172
Question 172 of the NEET 2025 paper (code 45) is a Zoology question from Biotechnology: Principles and Processes. Its idea, Role of DNA Ligase, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 1.
Updated 2026-10-08
Q172 · Zoology
Which of the following enzyme(s) are NOT essential for gene cloning?
A. Restriction enzymes
B. DNA ligase
C. DNA mutase
D. DNA recombinase
E. DNA polymerase
Choose the correct answer from the options given below:
- 1C and D onlyOfficial answer
- 2A and B only
- 3D and E only
- 4B and C only
Official answer: option 1 · NTA final answer key
Same idea
The only question on Role of DNA Ligase
No other NEET paper from 2017–2026 tested this exact idea.
The chapter
Biotechnology: Principles and Processes in ten years of NEET
46 questions from 2017–2026, asked in 10 of 10 papers, about 4.4 a paper. Restriction Enzymes alone had 22.