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17.3 Molecular Clocks

Molecular clocks provide clues to evolutionary history.

molecular clocktheoretical clock that uses the rate of mutation to measure evolutionary time
mitochondrial DNADNA found only in mitochondria, often used as a molecular clock
ribosomal RNARNA that is in the ribosome and guides the translation of mRNA into a protein; also used as a molecular clock

Blue Valley Northwest High School
Overland Park, KS

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