NEET UG 2026 · Chemistry · Question 50
NEET 2026 Chemistry, question 50
Question 50 of the NEET 2026 paper (re-exam) is a Chemistry question from Biomolecules. Its idea, Levels of Protein Structure, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 3.
Updated 2026-10-08
Q50 · Chemistry
The correct statement about peptides and proteins is
- 1Tertiary structure of proteins has two or more polypeptide subunits.
- 2Only the proteins having a quaternary structure are biologically active.
- 3In -pleated sheet structures, peptide chains are held together by intermolecular hydrogen bonds.Official answer
- 4In -helices, the polypeptide chain is twisted into a left-handed screw (helix) through intramolecular hydrogen bonds.
Official answer: option 3 · NTA final answer key
Same idea
The only question on Levels of Protein Structure
No other NEET paper from 2017–2026 tested this exact idea.
Levels of Protein Structure: every question and how it was framed
The chapter
Biomolecules in ten years of NEET
14 questions from 2017–2026, asked in 10 of 10 papers, about 1.4 a paper. Biomolecules (Chemistry) alone had 14.