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inn [45]
3 years ago
15

When scientists compare molecular clocks between species, they

Biology
2 answers:
Monica [59]3 years ago
6 0

Answer:

ITS B: DIIFERENT GENES

Explanation:

Dafna11 [192]3 years ago
6 0

Answer:

Yeah same here

Explanation:

The reason is mutation rates differ between species and even between different regions of the genome of a single species. These different rates of nucleotide substitution are measured in substitutions (fixed mutations) per base pair per generation.

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