NEET UG 2017 · Zoology · Question 145
NEET 2017 Zoology, question 145
Question 145 of the NEET 2017 paper (code A) is a Zoology question from Biotechnology: Principles and Processes. Its idea, Ethidium Bromide Intercalation, was asked only this once in NEET 2017–2026. The CBSE official answer key gives option 4.
Updated 2026-10-08
Q145 · Zoology
The DNA fragments separated on an agarose gel can be visualised after staining with :
- 1Bromophenol blue
- 2Acetocarmine
- 3Aniline blue
- 4Ethidium bromideOfficial answer
Official answer: option 4 · CBSE official answer key
Same idea
The only question on Ethidium Bromide Intercalation
No other NEET paper from 2017–2026 tested this exact idea.
Ethidium Bromide Intercalation: 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.