DNA: The Blueprint of life.

Question 1

What are the differences between purines and pyrimidines?

Answer 1

Purines have double carbon-nitrogen ring with four nitrogen atoms.
Adenine and Guanine in both DNA and RNA.

Pyrimidines have single carbon-nitrogen ring with two nitrogen atoms.
Cytosine in both DNA and RNA Uracil only in RNA Thymine only in DNA.
(CUT)

Question 2

What do you mean by complementary pairing in DNA?

Answer 2

Bases pair up with each other in a consistent way, and this process is called complementary base pairing.
Purines always pairs with Pyrimidine.

Question 3

1. ADENINE pairs with _________.
2. Guanine pairs with__________.
3. In RNA, uracil pairs with _______.

Answer 3

1. THYMINE
2. CYTOSINE
3. ADENINE