Biology

What is a molecular clock?

A)a tool scientists use to date fossils
B)a tool scientists use to determine how many mutations a species accumulates over time
C)a tool scientists use to determine how long two species have been evolving independently
D)a tool scientists use to determine how long it takes to sequence a strand of DNA

My Answer: A
I think B could be a possibility too but Im pretty sure its A.

asked by Corie
  1. I think there's a better answer.

    http://en.wikipedia.org/wiki/Molecular_clock

    posted by Ms. Sue
  2. I think what it is saying there implies that its C. is that right? :)

    posted by Corie
  3. Yes, I think C is the best answer.
    What does your book say?

    posted by Ms. Sue
  4. thanks :) I don't have one....

    posted by Corie

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