Question

Which of the following is not a pyrimidine?

• A. Thymine
• B. Uracil
• C. Guanine
• D. Cytosine

Answer 1

Answer: (C)

The nitrogenous bases are of two types:
(a) Pyrimidine base?cytosine, thymine
(b) Purine base, adenine, guanine.
These nitrogenous bases are found in DNA/RNA. Uracil is found in RNA in place of thymine.