Question

Name the commonly found purines in nucleic acids.

Answer 1

Purines in nucleic acids:

1. Purines and pyrimidines are the two types of nitrogen-containing bases found in nucleic acids.
2. Purines are made up of a six-membered nitrogen-containing ring fused to a five-membered nitrogen-containing ring.
3. Pyrimidines feature a nitrogen-containing ring with only six members.
4. The number of rings in a base determines whether it's a purine or pyrimidine.
5. Purines present in both DNA and RNA include adenine and guanine.
6. The number of hydrogen bonds between purines and pyrimidines is always constant, as is the number of purines that pair with particular pyrimidines.
7. Adenine forms two hydrogen bonds with thymine (A::T).
8. Guanine forms three hydrogen bonds with cytosine (G:::C).