Q12 · CSIR-NET Chemistry, December 2016
Paper: CSIR-NET December 2016 · Subject: Organic Chemistry · Chapter: Natural Products · Topic: Natural Products – General · Marks: 2 · Difficulty: Easy
Correct characteristics of the functional groups of adenine in DNA base pair are
(a)$\mathrm{N}(3)$ is a hydrogen bond acceptor and $\mathrm{C}(6) \mathrm{NH}_{2}$ is a hydrogen bond donor.
(b)$\mathrm{N}(1)$ is a hydrogen bond acceptor and $\mathrm{C}(6) \mathrm{NH}_{2}$ is a hydrogen bond donor
(c)Both $\mathrm{N}(3)$ and $\mathrm{C}(6) \mathrm{NH}_{2}$ are hydrogen bond acceptors
(d)Both $\mathrm{N}(1)$ and $\mathrm{C}(6)\mathrm{NH_2}$ are hydrogen bond acceptors
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
In the A·T Watson–Crick pair adenine's N(1) accepts a hydrogen bond from thymine N(3)–H and the C(6)-NH₂ donates one to thymine's C(4)=O.
Study loop for Natural Products
· Browse this chapter in the app