Nucleotides are composed of which of the following?
A) Pentose sugar, phosphate molecule, and a nitrogenous base
B) Pentose sugar, nucleic acid, and a nitrogenous base
C) Hexane molecule, muramic acid, and a phosphorylated base
D) Amino acid, phosphate molecule, and a nitrogenous base
E) DNA, RNA, and amino acid chain

Question

Quizplus · Accepted Answer

Nucleotides are composed of a pentose sugar (either ribose or deoxyribose), a phosphate molecule, and a nitrogenous base (either adenine, guanine, cytosine, or thymine/uracil). Choice B is incorrect because nucleic acid is not a component of a nucleotide, but rather a polymer formed by linking multiple nucleotides together. Choices C, D, and E are all incorrect because they list components that are not present in nucleotides.

Nucleotides Are Composed of Which of the Following