NEET UG 2019 · Zoology · Question 145
NEET 2019 Zoology, question 145
Question 145 of the NEET 2019 paper (code P1) is a Zoology question from Biotechnology: Principles and Processes. Its idea, Phosphodiester Bond Cleavage, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 2.
Updated 2026-10-08
Q145 · Zoology
Following statements describe the characteristics of the enzyme Restriction Endonuclease. Identify the incorrect statement.
- 1The enzyme cuts DNA molecule at identified position within the DNA.
- 2The enzyme binds DNA at specific sites and cuts only one of the two strands.Official answer
- 3The enzyme cuts the sugar-phosphate backbone at specific sites on each strand.
- 4The enzyme recognizes a specific palindromic nucleotide sequence in the DNA.
Official answer: option 2 · NTA final answer key
Same idea
The only question on Phosphodiester Bond Cleavage
No other NEET paper from 2017–2026 tested this exact idea.
Phosphodiester Bond Cleavage: every question and how it was framed
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.