Homework Help: Biology

Posted by Corie on Tuesday, January 22, 2013 at 12:21pm.

How do scientists calibrate a molecular clock? A)They determine the number of mutations accumulated in a gene of a species of known age. B)They compare the ticking of the molecular clock with that of the atomic clock. C)They use the clock that ticks at the appropriate rate for the divergence rate that they are trying to calculate. D)They compare the number of positive mutations that have occurred in a particular species with the number of negative mutations that have occurred.
My Answer: D
is this right?

Biology-Ms. Sue? - Corie, Tuesday, January 22, 2013 at 12:30pm
Ms. Sue can you check my answer plz?
Biology-anyone - Corie, Tuesday, January 22, 2013 at 12:33pm
can someone check my answer?
Biology - Ms. Sue, Tuesday, January 22, 2013 at 12:35pm
Biology is definitely not my field, but, after reading this site, I think A is the best answer.

http://www.nature.com/scitable/topicpage/the-molecular-clock-and-estimating-species-divergence-41971
Biology - Corie, Tuesday, January 22, 2013 at 12:36pm
ill check out the site :)
thanks ms sue
Biology - Jman, Tuesday, January 22, 2013 at 12:36pm
I think Your right. I'm not good at it either. Sorry if i get it wrong but thats my answer
Biology - Amina, Friday, February 1, 2013 at 12:59pm
It's A

Answer this Question

Related Questions

Biology - What is a molecular clock? A)a tool scientists use to date fossils B)a...
Biology - Please help, anyone! There's 3 types of gene mutation: ...
Biology - Put the following procedures of gene therapy in order: a. The healthy ...
Biology - As scientists tried to discover the nature of genes, what three ...
Biology - As scientists tried to discover the nature of genes, what three ...
Biology - 11. You are searching for a gene that traces its ancestry to an ...
Microbiology - Explain how mutations help us define a gene and its function.
physics - A clock has an aluminum pendulum with a period of 1.000 s at 20.2 °...
physics - A clock has an aluminum pendulum with a period of 1.000 s at 20.3 °...
Molecular Cell Biology - How do you knock out a gene in cell culture?

For Further Reading

First Name:
School Subject:
Answer: