Indian Forest Service (Mains)
Chemistry optional
- 2 papers
- 200 marks each
- 3 h per paper
Paper II covers organic chemistry and spectroscopy.
All topics
Paper II, organic chemistry and spectroscopy
Biopolymers: every question, 2021 to 2025
11 parts worth 55 marks have been set on this unit in UPSC IFoS Chemistry Paper II from 2021 to 2025. Each one opens on its own page with the question, the answer in brief and the key points.
Syllabus
Basic bonding in proteins, DNA and RNA.
Notes: Biopolymers: proteins, peptides, DNA and RNA (full notes) · short notes
2025
- Q5(a) Edman degradation5 marks Answered
- Q5(b) Complementary base pairs in RNA5 marks Answered
2024
- Q5(d) Geometry of a peptide bond5 marks Answered
2023
- Q5(h) Complementary DNA base pairs5 marks Answered
- Q7(f) Sanger determination of the N terminus5 marks Answered
2022
- Q5(a) Hydrophobic effect in biomolecules5 marks Answered
- Q5(c) Complementary DNA and RNA sequence5 marks Answered
- Q6(c) Hydrogen bonds in protein secondary structure5 marks Question only
2021
- Q4(d)(ii) Nucleoside and nucleotide structures5 marks Question only
- Q5(b) DNA bases and pairing5 marks Answered
- Q6(b)(i) Tertiary protein structure5 marks Answered