Author Question: A small group of people with several color-blind individuals moves from the mainland to a previously ... (Read 137 times)

geodog55 · **on:** Aug 11, 2018

A small group of people with several color-blind individuals moves from the mainland to a previously uninhabited, secluded island. Two hundred years later, 5 percent of the people of the island have color-blindness. This is an example of:

a. founder effects
b. population bottleneck
c. mutation
d. gene flow

Question 2

How does the molecular clock theory work?

a. It is based on examining the number of genetic mutations that have occurred during divergence of species.
b. It proposes that species divergence is based on a constant rate of genetic drift and isolation.
c. It is based on the notion that the Earth is one hour old, and it calculates events on a 60-minute clock.
d. It is based on examining molecules and how chemical reactions occur over time.
e. It argues that evolution occurs at steady rates and cannot make any changes over time that are notprogrammed.