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Allele Frequency

Total questions: 20

Worksheet time: 17mins

Name
Class
Date
1.

A gene pool consists of

a)

all of the genes, including all the different alleles, that are present in a population

b)

some of the genes, including the different alleles, that are present in a population

c)

all of the genes that are present in all populations

d)

all of the genes, including all the different alleles, that are present in all populations

2.

The number of times a particular allele appears in a gene pool is known as the

a)

population of the allele

b)

relative percentage of the allele

c)

frequency of the allele

d)

evolution of the allele

3.

Evolution can be defined as a ____________

a)

change in the frequency of an allele in a population over time

b)

change in the frequency of reproduction in a population

c)

change in the frequency of an allele in an individual

4.

Which of the following is NOT true about evolution?

a)

Natural selection makes it happen

b)

It happens equally across all species

c)

Some individuals have a higher frequency than others

5.

What do we a call an anatomical, physiological, or behavioral change that improves a populations ability to survive?

a)

Adaptation

b)

Coherent Change

c)

Selective Breeding

d)

Adamant Change

6.
Genetic drift is change in the allele frequency of a population due to...
a)
random chance
b)
natural selection
c)
non-random mating (sexual selection)
d)
artificial selection
7.
This mechanism of evolution occurs when populations migrate.
a)
Extinction
b)
Gene flow
c)
Genetic drift
d)
Natural Selection
8.
What is the name of the process in which the most favorable traits are passed onto the next generation?
a)
Genetic drift
b)
Gene pool
c)
Gene flow
d)
Natural selection
9.
What is this an example of?
a)
diversity of species
b)
variation
c)
vestigial structures
d)
DNA studies
10.
If a person lives in an environment with low radiation what kind of skin color would be the best adapted
a)
Darker skin tones to increase production of Vitamin D Synthesis
b)
Darker skin tones to protect DNA and Folate
c)
Lighter Skin tones to increase production of Vitamin D
d)
Lighter Skin tones to protect DNA and Folate
11.
What is the evolutionary benefit for dark skin near the equator?
a)
Skin cancer protection
b)
Folate Protection
c)
It has no evolutionary relationship
d)
Easier vitamin D production
12.
What is the evolutionary benefit of light skin in the northern latitude.
a)
Skin cancer protection
b)
Folate Protection
c)
It has no evolutionary relationship
d)
Easier vitamin D production
13.

Which answer is more appropriate?

a)

Traits are good or bad.

b)

Traits can be harmful or hurtful depending on the environment.

c)

Traits are always helpful or hurtful, regardless of the environment.

d)

Traits are helpful or bad.

14.

What does sunlight (UV exposure) do to folate in our body?

a)

breaks it down

b)

builds it up

c)

creates it

d)

makes it stronger

15.
What is the evolutionary benefit of light skin in the northern latitude.
a)
Skin cancer protection
b)
Folate Protection
c)
It has no evolutionary relationship
d)
Easier vitamin D production
16.
Different tones of human skin color evolved 
a)
in response to varying levels of UV radiation in the environment
b)
Randomly and for no reason at all
17.

Why are advantageous traits more likely to be passed onto offspring?

a)

Because the parents are more likely to survive and reproduce.

b)

Because they come from dominant alleles.

c)

Because they come from recessive alleles.

d)

Because the trait is an acquired phenotype.

18.

What process leads to a new species and often begins by a portion of a population become physically or geographically isolated?

a)

Speciation

b)

Selective breeding

c)

genetic change

d)

resistance

19.
A flash flood carried a raft of Amazon ants away from their original population. There is enough distance between the two groups, that they will never meet in nature again. What type of reproductive barrier is this?
a)
behavioral isolation
b)
temporal isolation 
c)
gametic isolation
d)
geographic isolation 
20.
The term for the formation of new and distinct species over the course of evolution is...
a)
speciation
b)
biological species concept
c)
reproductive barrier
d)
natural selection