Week 4 Introduction to Physical Anthropology

Please provide detailed answers for the following questions 

A. In your own words describe each of the four forces of evolution, what you understand from them.

B. Why is the incidence of sickle-cell anemia an excellent example of a "balanced polymorphism," in which two or more alleles are maintained by natural selection in a population?

C. Why is a frameshift mutation far more likely to lead to a defective protein compared with a point mutation?

D. Explain how the founders effect can lead to a descendant population that differs greatly from its parent population over a relatively short period of time?

Cannot be plagiarized

each question has to be about one paragraph long

has to be completed by 12 noon pacific time.