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Darwin and population genetics

Total questions: 26

Worksheet time: 22mins

Name
Class
Date
1.

Darwin's theory of natural selection was made complete once the work ______ was rediscovered

a)

Rosalind Franklin

b)

Gregor Mendel

c)

Thomas Malthus

d)

Wihelm Weinburg

2.

The driving force behind naturaal selectionis genetic_____

a)

Recombination

b)

Stabilizing

c)

Variation

d)

Drift

3.

Natural selection acts upon or favors____

a)

Phenotypes

b)

Genotypes

c)

Recessive alleles

d)

Dominant alleles

4.

Normal distribution can be described as a range of values clustered around a(n) ____ value

a)

Extreme

b)

Average

c)

Distributed

d)

Directional

5.

if a population is in genetic equilibrium, it can be describe as:

a)

Unchanging

b)

Balanced

c)

Evolving

d)

Both (a) and (b)

6.

Possible reasons for genetic changes to a population area:

a)

Natural selection

b)

Mutation

c)

Gene flow

d)

Genetic drift

e)

Nonrandom mating

7.

Match the correct term with the definition below


An evolutionary force in which individuals enter or leave a population

a)

Genetic drift

b)

Gene flow

c)

Natural selection

d)

Nonrandom mating

8.

A type of selection in which one extreme variation is favored

a)

Stabilizing selection

b)

Directional selection

c)

Disruptive selection

9.

A evolutionary force in which certain traits are selected more than other when choosing mates

a)

Gene flow

b)

Genetic drift

c)

Nonrandom mating

d)

Natural selection

10.

a type of selection in which average phenotypes are favored

a)

Stabilizing selection

b)

Directional selection

c)

Disruptive selection

11.

An evolutionary force in which small populations are affected by natural disasters in such a way that alters genetic frequencies

a)

Genetic Drift

b)

Gene flow

c)

Natural selection

d)

Nonrandom mating

12.

An evolutionary force in which the envirormental conditions favors certain phenotypes

a)

Nonrandom mating

b)

Natural selection

c)

Gene flow

d)

Genetic drift

13.

A type of selection in which both extreme variations are favored for

a)

Stabilizing selection

b)

Directional selection

c)

Disruptive selection

14.

GIve an example of aj Hardley weinburg equation

(a)  

15.

In the Hardy - Weinberg equation the P stands for the frequency of what allele

(a)  

16.

Define evolution in biology

(a)  

17.

what ship did Charles darwin travel on

(a)  

18.

Define homologous structures

(a)  

19.

Limpets are small snails that live near the seashore; their shells can be light, dark limpets are more easily seen by birds , and easily hunted what type of selection best describes this scenario?

(a)  

20.

define population bottleneck

(a)  

21.

Natural selections acts on a range of

a)

individuals

b)

Phenotypes

c)

Genotypes

d)

Environments

22.

a population of artic hares burrow into the snow for shelter. it is found that the hares on the smaller side are able to burrow between rocks, as well providing extra protection from predators over time, the hare populations becomes smaller in size shifiting the normal distribution curve for hare size


this would be an example of

a)

Stabilizing selection

b)

Disruptive selection

c)

Directional selection

d)

Normal distribution

23.

Limpets are a snail species that can often be found on the sea shore they can come in 3 variations, dark light and intermediate the dark and light colors are easier for the seahorse gulls to spot, and therefore they and more commonly hunted. This would be an example of

a)

Stabilizing selection

b)

Disruptive selection

c)

Directional selection

d)

Normal distribution

24.
a)

stabilizing

b)

Disruptive

c)

Directional

25.

a)

Directional

b)

Stabilizing

c)

Disruptive

26.

a)

Stabilizing

b)

Disruptive

c)

Directional