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Saturday, 10 October

NEET UG 2022 · Botany · Question 141

NEET 2022 Botany, question 141

Question 141 of the NEET 2022 paper (code R1) is a Botany 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 3.

Updated 2026-10-08

Q141 · Botany

In the following palindromic base sequences of DNA, which one can be cut easily by particular restriction enzyme ?

  1. 15' G T A T T C 3' ; 3' C A T A A G 5'
  2. 25' G A T A C T 3' ; 3' C T A T G A 5'
  3. 35' G A A T T C 3' ; 3' C T T A A G 5'Official answer
  4. 45' C T C A G T 3' ; 3' G A G T C A 5'

Official answer: option 3 · 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 Q169Given below are two statements : Statement I : Restriction endonucleases recognise specific sequence to cut DNA known as palindromic…Two statements · Easy
  • 2021 Q159A specific recognition sequence identified by endonucleases to make cuts at specific positions within the DNA is :One-line MCQ · Easy

Palindromic Sequences: 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.

Biotechnology: Principles and Processes: questions per paper

0365’171’183’196’206’215’225’235’246’254’26