NEET UG 2022 · Botany · Question 111
NEET 2022 Botany, question 111
Question 111 of the NEET 2022 paper (code R1) is a Botany question from Biotechnology: Principles and Processes. Its idea, Exponential DNA Amplification, was asked twice, in 2022 and 2025, across NEET 2017–2026. The NTA final answer key gives option 3.
Updated 2026-10-08
Q111 · Botany
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) :
Polymerase chain reaction is used in DNA amplification
Reason (R) :
The ampicillin resistant gene is used as a selectable marker to check transformation
In the light of the above statements, choose the correct answer from the options given below :
- 1(A) is not correct but (R) is correct
- 2Both (A) and (R) are correct and (R) is the correct explanation of (A)
- 3Both (A) and (R) are correct but (R) is not the correct explanation of (A)Official answer
- 4(A) is correct but (R) is not correct
Official answer: option 3 · NTA final answer key
Same idea
Exponential DNA Amplification, in other papers
NEET asked this idea twice, in 2022 and 2025. The other question below.
- 2025 Q92Polymerase chain reaction (PCR) amplifies DNA following the equation.One-line MCQ · Easy
Exponential DNA Amplification: 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. Polymerase Chain Reaction alone had 6.