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Week 2 Microevolution Quiz

Total questions: 15

Worksheet time: 20mins

Name
Class
Date
1.

What is the term for a feature that allows an organism to survive better in its environment?

a)

variation

b)

adaptation

c)

homologous structure

d)

vestigial structure

2.
Some organisms that share a common ancestor have features that have different functions, but similar structures.  These are known as
a)
vestigial structures
b)
analogous structures
c)
homologous structures
d)
fossil structures
3.
The gradual change in species over time is...
a)
Evolution
b)
Nucleotide 
c)
Adaptation
d)
Natural Selection
4.

When organisms are better adapted to their environment they will survive and reproduce more successfully than organisms less adapted. This process is called what?

a)

Selective breeding

b)

Natural Selection

c)

Cloning

d)

Evolution of all species

5.

What is the study of organisms at the early stages of development?

a)

DNA studies

b)

Comparative Embryology

c)

Extinction

d)

Fossil Record

6.
T5. What does the image represent?
a)
Founder effect
b)
Bottleneck effect
c)
Mutation
d)
Natural Selection
7.

If 98 out of 200 individuals in a population express the recessive phenotype, what percent of the population would you predict would be heterozygous?

a)

70%

b)

30%

c)

42%

d)

49%

8.

What type of selection is depicted in the picture where one phenotype is favored?

a)

stabilizing

b)

directional

c)

disruptive

9.
If finches with large beaks and finches with small beaks increase in a population while finches with average sized beaks decreases, which pattern of natural selection has occurred?
a)
Directional selection
b)
Disruptive selection 
c)
Stabilizing selection
10.

The hind leg bones in a whale, which are a rudimentary structure in humans corresponding to a functional structure or organ in ancestral animals, are examples of

a)

homologous structures

b)

analogous structures

c)

fossils

d)

vestigal structures

11.

Body parts that share a common function, but not structure would be considered

a)

Homologous structure

b)

Analogous structure

c)

Structural adaption

d)

Functional adaption

12.
Which Hardy-Weinberg factor represents the frequency of heterozygous individuals in a population?
a)
p2
b)
2pq
c)
q2
d)
p2 + 2pq
13.
A population of 150 individuals has an allele frequency of 0.3 for the dominant allele (B) and a frequency of 0.7 for the recessive allele (b). Use the Hardy-Weinberg equation to determine the frequency of the genotype (bb).
a)
0.09
b)
0.42
c)
0.49
d)
0.21
14.

Within a population of 500 butterflies, the color purple is dominant over the color white. 200 of the butterflies are white. What is the frequency of homozygous dominant individuals? Give your answer as a decimal to the nearest hundredth.

a)

.47

b)

.37

c)

.14

d)

.4

15.

In a population that is in Hardy-Weinberg equilibrium, the frequency of the homozygous recessive genotype is 0.09. What is the frequency of individuals that are homozygous for the dominant allele?

a)

.49

b)

.42

c)

.09

d)

.7