Which of the following is a purine base found in nucleotides?

A) uracil
B) steroid
C) guanine
D) cytosine
E) thymine

Purine Base

A type of nitrogen-containing base, including adenine and guanine, which are components of DNA and RNA.

Guanine

A nitrogenous purine base that is a component of nucleic acids and GTP.

Nucleotides

Nucleotides are the basic building blocks of nucleic acids, such as DNA and RNA, consisting of a nitrogenous base, a sugar molecule, and one or more phosphate groups.