Chromosomes Are Composed Mainly of DNA

question 40

True/False

Chromosomes are composed mainly of DNA.

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Definitions:

Steroid Hormone

A type of hormone derived from cholesterol that can pass through cellular membranes and is involved in a wide range of bodily functions.

Nucleic Acid

Organic molecules that serve as the blueprint for proteins and, through the actions of proteins, the entire phenotype of a living organism; includes DNA and RNA.

Hydrolysis

A chemical reaction in which water is used to break down the bonds of a particular substance, commonly involving the disassembly of polymers into monomers.

Nucleotides

The building blocks of DNA and RNA, consisting of a nitrogenous base, a sugar (ribose in RNA, deoxyribose in DNA), and one to three phosphate groups.