A certain segment of DNA can be used as a molecular clock. Its rate of mutation is one mutation per 10 million years. Examine the DNA segments from two different species:
Species A: CTTAAGCTAGTAAGGACC
Species B: CATAAGTTAGTAAGGTCC
Using this example, explain how this information can be used to determine how long ago these two species shared a common ancestor.
Be sure to answer this question in paragraph form using complete sentences.