Problem:

Question 1: What can be defined as the fraction of the variation in a population that is due to differences in genes?

Points Which of the following statements best summarizes natural selection?

A. Organisms evolve in order to become better adapted to the environment.

B. Individuals who are most fit will survive.

C. Traits that promote survival and reproduction become more frequent in species from one generation to the next.

D. Organisms change in order to become adapted to new environments.

Question 2: Regarding the nature of natural selection, which of the following is NOT an accurate statement?

A. Populations evolve traits by natural selection that will be useful for future environmental changes.

B. Natural selection acts on the phenotypes of individuals, but evolution occurs with changes in allele frequencies in populations.

C. Natural selection can and does produce features that are less than perfect adaptations.

D. Natural selection operates as a systematic, nonprogressive mechanism.

Question 3: Suppose you were a dog breeder who wished to reduce the incidence of barking in an otherwise popular breed of dog. Design a strategy that would allow you to do this. What assumptions would you need to make, and what key elements would need to be in place to be successful?

Any ideas? Or better yet, pointers to places where this has already been answered?