Evolution Test

Question 1
1 / -0

Suborder Pleocyemata includes both crabs and lobsters. Both possess a tail but in crabs this structure is very small and not used. This structure cannot be considered as an example of

A
Convergent evolution

B
Vestigial structure

C
Divergent evolution

D
Genetic fitness

E
Homologous structure

Question 2
1 / -0

In a particular population, if the frequency of the recessive allele is 0.6 then the frequency of dominant allele is

A
0.16

B
0.36

C
0.48

D
0.4

E
0.6

Question 3
1 / -0

The highest evolutionary fitness is shown by

A
A Cheetah that catches the most prey

B
A Fox that successfully avoids predators

C
A Tortoise that has lived for over 100 years

D
A Wolf that recovers quickly from a wound

E
A Gorilla that reproduces several times

Question 4
1 / -0

Which of the following is incorrect about the population in Hardy-Weinberg equilibrium?

A
There is no migration of individuals either into or out of the population.

B
The population is not influenced by selective pressures.

C
Mating occurs randomly within the population.

D
There is no change in the rate of mutation.

E
The population is relatively small.

Question 5
1 / -0

Read the passage and answer the following question.

The long term research project studies a salamander species that inhabits several wet, cool valleys within a mountain range. Over a period of time the sizes of several populations are recorded, including Populations A, B, and C shown on the map. The project also froze tissue samples from the populations and later analyzed the samples for allele frequencies at Locus 1 and Locus 2. There are two alleles at Locus 1, dominant T and recessive t: and there are two alleles at Locus 2, dominant W and recessive w. The population sizes and allele frequencies over the 90-year study are presented in table 1. The salamanders reach maturity in one year and reproduce once each year. Populations B and C were originally connected to Population A by a mountain pass through which the salamanders passed during the summer months. In 1915, a mine was developed in the mountain pass between Populations A and B, preventing further migration of the salamanders between the two populations. The following year, the construction of a road prevented future migration of salamanders between Populations A and C. There were no other changes in the environment, other than a significant warming and reduction of rain from 1993 to 1950 that affected the habitats of Populations A, B, and C equally.

The condition occurs after the development of the road is

A
By definition, Populations A and C each become a separate species since they are geographically isolated.

B
Population C undergoes adaptive radiation to form several new species.

C
Population C evolves to have an increased number of heterozygotes at Locus 1.

D
Population A will evolve a mechanism to migrate through the developed mountain pass.

E
Population C will be eliminated due to competition from other salamander populations.

Question 6
1 / -0

Identify the correct order of appearance of the following organisms on the surface of earth.
I. Eukaryotes
II. Heterotrophic organisms
III. Metazoa
IV. Photosynthetic organisms

A
II, I, IV, III

B
II, I, III, IV

C
II, IV, I, III

D
IV, I, II, III

E
IV, II, I, III

Question 7
1 / -0

Read the two incidents given below.
Incident 1: A species of moth is preyed on by bats. Over hundreds of years, the moths develop a sophisticated pattern of flying when they hear the screech of a bat and which helps them to escape danger. Other changes occurs like, when the current moth mates with its ancestor moth, no viable eggs are produced.
Incident 2: A species of frogs is living in a pond near an earthquake fault line. A earthquake separates the frog population into two separate populations. After hundreds of years, the two groups are unable to mate.
Incident 2 is an example of

A
Survival of the fittest

B
Convergent evolution

C
Divergent evolution

D
Stabilizing selection

E
Directional selection

Question 8
1 / -0

For a Hardy-Weinberg equilibrium, a characteristic of population is

A
Founder effect

B
Heterozygote advantage

C
Population bottleneck

D
Random mating

E
Reproductive isolation

Question 9
1 / -0

Convergent evolution will not take place in

A
Structures that have similar functions

B
Behaviors that are similar

C
Different species that resemble one another

D
Production of a single species from two originally different species

E
Niches that are similar

Question 10
1 / -0

The concept of stabilizing selection is described by

A
Graph I only

B
Graph II only

C
Both Graph I and Graph II

D
Graph III only

E
Both Graph II and Graph III

Submit Test

Evolution Test ...

Question 1

Convergent evolution

Vestigial structure

Divergent evolution

Genetic fitness

Homologous structure

Question 2

0.16

0.36

0.48

0.4

0.6

Question 3

A Cheetah that catches the most prey

A Fox that successfully avoids predators

A Tortoise that has lived for over 100 years

A Wolf that recovers quickly from a wound

A Gorilla that reproduces several times

Question 4

There is no migration of individuals either into or out of the population.

The population is not influenced by selective pressures.

Mating occurs randomly within the population.

There is no change in the rate of mutation.

The population is relatively small.

Question 5

By definition, Populations A and C each become a separate species since they are geographically isolated.

Population C undergoes adaptive radiation to form several new species.

Population C evolves to have an increased number of heterozygotes at Locus 1.

Population A will evolve a mechanism to migrate through the developed mountain pass.

Population C will be eliminated due to competition from other salamander populations.

Question 6

II, I, IV, III

II, I, III, IV

II, IV, I, III

IV, I, II, III

IV, II, I, III

Question 7

Survival of the fittest

Convergent evolution

Divergent evolution

Stabilizing selection

Directional selection

Question 8

Founder effect

Heterozygote advantage

Population bottleneck

Random mating

Reproductive isolation

Question 9

Structures that have similar functions

Behaviors that are similar

Different species that resemble one another

Production of a single species from two originally different species

Niches that are similar

Question 10

Graph I only

Graph II only

Both Graph I and Graph II

Graph III only

Both Graph II and Graph III

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