Question Detail

ZOO 102 Practice Questions ZOO 102 3 Objective Question

Question

16. The concept of a 'molecular clock' is used to
Options
A Measure an organism's lifespan
B Estimate the time of evolutionary changes based on DNA alterations occurring at a relatively constant rate
Correct Answer
C Track daily circadian rhythms
D Determine an organism's habitat
Correct Answer

Option B is the correct answer.

Detailed Explanation

Molecular clocks use neutral DNA mutation rates to calculate historical divergence times between evolutionary lineages.

Hint

Uses DNA mutation rates over time to estimate when species diverged.

Question Info