NEET UG 2019 · Zoology · Question 122
NEET 2019 Zoology, question 122
Question 122 of the NEET 2019 paper (code P1) is a Zoology question from Biotechnology: Principles and Processes. Its idea, DNA Precipitation with Chilled Ethanol, was asked 3 times, in 2019, 2021 and 2023, across NEET 2017–2026. The NTA final answer key gives option 2.
Updated 2026-10-08
Q122 · Zoology
DNA precipitation out of a mixture of biomolecules can be achieved by treatment with :
- 1Isopropanol
- 2Chilled ethanolOfficial answer
- 3Methanol at room temperature
- 4Chilled chloroform
Official answer: option 2 · NTA final answer key
Same idea
DNA Precipitation with Chilled Ethanol, in other papers
NEET asked this idea 3 times, in 2019, 2021 and 2023. The other 2 questions below.
- 2023 Q121During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates outOne-line MCQ · Medium
- 2021 Q101During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out :One-line MCQ · Easy
DNA Precipitation with Chilled Ethanol: 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.