7.4: Population Genetics

Question 1

What are mutations?

Answer 1

a

Question 2

Identify two examples of mutations that potentially could affect phenotype.

Answer 2

a

Question 3

How do mutations affect genetic makeup of a population?

Answer 3

a

Question 4

What is genetic drift?

Answer 4

a

Question 5

What is the bottleneck effect?

Answer 5

a

Question 6

How does the bottleneck effect modify genetic makeup of a population?

Answer 6

a

Question 7

Identify one example of a population that has undergone the bottleneck effect.

Answer 7

a

Question 8

What is the founder effect?

Answer 8

a

Question 9

How does the founders effect modify genetic makeup of a population?

Answer 9

a

Question 10

Identify one example of a population that has undergone the founder’s effect?

Answer 10

a

Question 11

What is gene flow?

Answer 11

a

Question 12

How does gene flow modify genetic makeup of a population?

Answer 12

a

Question 13

Identify one example of a population that has undergone gene flow.

Answer 13

a

Question 14

What is genetic variation?

Answer 14

a

Question 15

Why is genetic variation important for a population’s survivability?

Answer 15

a

Question 16

How does a decrease in genetic variation affect a population?

Answer 16

a

Question 17

When there is a decrease in genetic variation, how does the population compare to other populations of the same
species?

Answer 17

a

Question 18

What is the effect of mutations on genetic variation?

Answer 18

a

Question 19

How does genetic variation lead to a variation in phenotypes?

Answer 19

a

Question 20

Identify two examples of natural selection acting on phenotypes.

Answer 20

a

Question 21

What are the three types of selection? Identify an example of each type of selection.

Answer 21

a