Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly mathced with the category mentioned against it?

Options

(a) Thymine, Uracil – Pyrimidines
(b) Uracil, Cytosine – Pyrimidines
(c) Guanine, Adenine – Purines
(d) Adenine, Thymine – Purines

Correct Answer:

Adenine, Thymine – Purines

Explanation:

Purine is an organic nitrogenous base sparingly soluble in water, that gives rise to a group of biologically important derivatives, notably adenine and guanine, which occur in nucleotides and nucleic acids (DNA and RNA).