Fill in the blank below with the vocabulary word that best completes the sentence.

Using a _______ clock, scientists are able to estimate the amount of time that two species have been evolving independently.



Answer :

Final answer:

Molecular clocks in biology estimate the divergence time between species using DNA sequences.


Explanation:

Molecular clocks are tools used in biology to estimate the time two species have been evolving independently by analyzing DNA sequences. These clocks are based on the assumption that mutations accumulate at a steady rate in DNA over time. By comparing the differences in DNA sequences between species, scientists can determine when they diverged from a common ancestor.


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