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SAT® Subject Test in Biology

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Chromosomes, Genes and DNA

SATBIO-YNFZHX

What is the relationship between genes, chromosomes and DNA?

A

A chromosome is composed of DNA molecules and each chromosome contains multiple genes.

B

A gene is composed of chromosomes and each gene contains many DNA molecules.

C

DNA is composed of chromosomes and each DNA molecule contains many genes.

D

A chromosome is composed of many genes and each DNA molecule is made up of many chromosomes.

E

A gene is composed of many DNA molecules which are composed of chromosomes.