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6.2 Effects of Gene Flow

Total questions: 14

Worksheet time: 17mins

Name
Class
Date
1.

In Addition To Natural Selection, Two Other Mechanisms cause Changes to Alleles in a population

a)

Genetic variation

b)

Gene Flow

c)

Genetic Drift

d)

Point mutation

2.

What is the movement of genes into or out of a population

(Can cause a population to evolve)

a)

Genetic Drift

b)

Hydrosphere

c)

Open and close systems

d)

Gene Flow

3.

Genetic Drift is changes in (a)  

4.

Genetic Drift is a change in allele frequency's due to ____ Not Fitness

a)

Mutation

b)

Chance

c)

Style

d)

Natural Selection

5.

(a)   Genetic drift that results from an event that reduces the size of a population. Some alleles can be lost from the gene pool

6.

Draw an example of bottleneck effect

7.

_____ when a small number of individuals become isolated from the og population and colonize a new area

a)

Bottleneck effect

b)

Founder effect

c)

Hinting effect

d)

Isolation effect

8.

Founder effect: Each new population has a distinct gene pool from the original population resulting in changes in allele frequency which reduces ____

a)

Genetic variation

b)

Genetic valuation

c)

Genetic drift

d)

Genetic Decorum

9.

Draw and example of founder effect

10.

What can cause Bottleneck Effect?

a)

Disease

b)

Hunting

c)

Natural Disaster

11.

What can cause the Founder effect?

a)

Floods

b)

Earthquakes

c)

Fires

d)

hurricane

12.

_____ occurs when certain traits increase reproductive success

a)

Genetic Drift

b)

Bottleneck effect

c)

Founder effect

d)

Sexual Selection

13.

________ Is a competition among males to increase their accuses to females

a)

Intersexual selection

b)

Intrasexual selection

c)

Intinsexual selection

d)

intcepsexual selection

14.

_______ When Males display certain traits to attract females

a)

intersexual selection

b)

intrasexual selection

c)

Bottleneck effect

d)

Genetic Drift