A nucleotide contains
A) DNA and RNA.
B) a sugar and a phosphate.
C) complementary purines and pyrimidines.
D) RNA, protein, and lipids.
E) a sugar, a phosphate, and a nitrogen-containing base.

Question

Quizplus · Accepted Answer

Nucleotides are the building blocks of nucleic acids, such as DNA and RNA. A nucleotide is made up of a sugar molecule (either deoxyribose in DNA or ribose in RNA), a phosphate group, and a nitrogen-containing base which can be a purine (adenine, guanine) or a pyrimidine (cytosine, thymine, uracil). Therefore, choice E is the correct answer.

A Nucleotide Contains