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What can be used as a molecular clock to estimate the time since organisms diverged from a common ancestor?

User ScayTrase
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Answer: DNA

Step-by-step explanation:

Analyzing DNA from present-day and ancient genomes provides a complementary approach for dating evolutionary events. Because certain genetic changes occur at a steady rate per generation, they provide an estimate of the time elapsed. These changes accrue like the ticks on a stopwatch, providing a “molecular clock.” By comparing DNA sequences, geneticists can not only reconstruct relationships between different populations or species but also infer evolutionary history over deep timescales.

User Jutky
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