NEET UG 2021 · Zoology · Question 159
NEET 2021 Zoology, question 159
Question 159 of the NEET 2021 paper (code O1) is a Zoology question from Biotechnology: Principles and Processes. Its idea, Palindromic Sequences, was asked 3 times, in 2021 and 2022, across NEET 2017–2026. The NTA final answer key gives option 1.
Updated 2026-10-08
Q159 · Zoology
A specific recognition sequence identified by endonucleases to make cuts at specific positions within the DNA is :
- 1Palindromic Nucleotide sequencesOfficial answer
- 2Poly(A) tail sequences
- 3Degenerate primer sequence
- 4Okazaki sequences
Official answer: option 1 · NTA final answer key
Same idea
Palindromic Sequences, in other papers
NEET asked this idea 3 times, in 2021 and 2022. The other 2 questions below.
- 2022 Q141In the following palindromic base sequences of DNA, which one can be cut easily by particular restriction enzyme ?One-line MCQ · Easy
- 2022 Q169Given below are two statements : Statement I : Restriction endonucleases recognise specific sequence to cut DNA known as palindromic…Two statements · Easy
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.