Question 1

Microevolution is not influenced by which of the following?

Accepted Answer

A)   mutation
B)   random mating
C)   gene flow
D)   natural selection
E)   genetic drift Microevolution is influenced by mutation, gene flow, nonrandom mating, natural selection, and genetic drift. Microevolution will not occur if all of the Hardy-Weinberg conditions are met, including random mating.

Question 2

If the average leg size of a reptile continually got smaller through generations, this would be an example of

Accepted Answer

A)   disruptive selection.
B)   stabilizing selection.
C)   directional selection.
D)   genetic drift.
E)   bottleneck effect. Directional selection occurs when one extreme variant is selected, no other phenotypes are as successful, and this trait increases in frequency over time.

Question 3

Polydactylism possessing more than five fingers per hand) within the Amish population in Pennsylvania is considered an example of the founder effect. This is because the frequency of polydactylism among the Amish in Pennsylvania is identical to its frequency among the Amish population in Germany.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following is most likely to result in the formation of two distinct species?

Accepted Answer

A)   directional selection
B)   stabilizing selection
C)   disruptive selection
D)   genetic drift
E)   bottleneck effect Disruptional selection divides a single population into two, which could eventually lead to two distinct species.

Exam 15: Evolution on a Small Scale

Which of the following is most likely to result in the formation of two distinct species?

Correct Answer
verified

Polydactylism possessing more than five fingers per hand) within the Amish population in Pennsylvania is considered an example of the founder effect. This is because the frequency of polydactylism among the Amish in Pennsylvania is identical to its frequency among the Amish population in Germany.

Correct Answer
verified

Microevolution is not influenced by which of the following?

Correct Answer
verified

If the average leg size of a reptile continually got smaller through generations, this would be an example of

Correct Answer
verified

Exam 15: Evolution on a Small Scale

Which of the following is most likely to result in the formation of two distinct species?

Correct AnswerverifiedShow Answer

Polydactylism possessing more than five fingers per hand) within the Amish population in Pennsylvania is considered an example of the founder effect. This is because the frequency of polydactylism among the Amish in Pennsylvania is identical to its frequency among the Amish population in Germany.

Correct AnswerverifiedShow Answer

Microevolution is not influenced by which of the following?

Correct AnswerverifiedShow Answer

If the average leg size of a reptile continually got smaller through generations, this would be an example of

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified