Question 1

Individuals of a(n) __________ share a gene pool.

Accepted Answer

The answer of Individuals of a(n) __________ share a gene...

Question 2

Choose the most appropriate letter for each.​
-gene pool
A)​a reference point that implies stability of gene frequencies through generations
B)​encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups
C)​the genes of an entire population
D)​the frequency of homozygous dominants in a population
E)​the frequencies of dominant and recessive alleles in a population
F)​the frequency of heterozygotes in a population
G)​the frequency of homozygous recessives in a population
H)​heterozygote advantage in regions where malaria is found
I)​pesticide-resistant pests

Accepted Answer

Gene pool refers to the genes of an entire population.

Answer: B
 Gene pool encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups.

Answer: I
 Pesticide-resistant pests are an example of changes in gene frequencies within a population, which is related to the gene pool.

Question 3

For the following statements, select the best choice of the four evolutionary processes listed below.​
-This is most likely to lead to the loss of genetic variation in a small population.
A)​Mutation
B)​gene flow
C)​genetic drift
D)​natural selection

Accepted Answer

Genetic drift is the process by which random fluctuations in allele frequencies occur due to chance events in small populations. As a result of genetic drift, some alleles may become fixed (i.e., all individuals in the population are homozygous for that allele), while others may be lost. This can lead to a loss of genetic variation in the population over time. The other processes listed (mutation, gene flow, and natural selection) may increase or maintain genetic variation.

Question 4

__________ selection favors intermediate forms of a trait where __________ selection favors extreme forms.

Accepted Answer

The answer of __________ selection favors intermediate forms of a...

Question 5

__________ shifts the range of variation in traits in one direction.

Accepted Answer

The answer of __________ shifts the range of variation in...

Question 6

Choose the most appropriate letter for each.​
-directional selection
A)​a reference point that implies stability of gene frequencies through generations
B)​encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups
C)​the genes of an entire population
D)​the frequency of homozygous dominants in a population
E)​the frequencies of dominant and recessive alleles in a population
F)​the frequency of heterozygotes in a population
G)​the frequency of homozygous recessives in a population
H)​heterozygote advantage in regions where malaria is found
I)​pesticide-resistant pests

Accepted Answer

Directional selection often leads to adaptations within a population, such as pesticide resistance in pests, as those individuals with traits conferring resistance are more likely to survive and reproduce.

Question 7

__________ occurs in different patterns depending on the species and selection pressures.

Accepted Answer

The answer of __________ occurs in different patterns depending on...

Question 8

Choose the most appropriate letter for each. -q² A)a reference point that implies stability of gene frequencies through generations B)encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups C)the genes of an entire population D)the frequency of homozygous dominants in a population E)the frequencies of dominant and recessive alleles in a population F)the frequency of heterozygotes in a population G)the frequency of homozygous recessives in a population H)heterozygote advantage in regions where malaria is found I)pesticide-resistant pests

Accepted Answer

q² represents the frequency of homozygous recessives in a population according to the Hardy-Weinberg principle.

Question 9

Choose the most appropriate letter for each.​
-species
A)​a reference point that implies stability of gene frequencies through generations
B)​encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups
C)​the genes of an entire population
D)​the frequency of homozygous dominants in a population
E)​the frequencies of dominant and recessive alleles in a population
F)​the frequency of heterozygotes in a population
G)​the frequency of homozygous recessives in a population
H)​heterozygote advantage in regions where malaria is found
I)​pesticide-resistant pests

Accepted Answer

A species is defined by reproductive isolation from other groups, meaning individuals of one species cannot successfully interbreed with individuals of another species.

Question 10

For the following statements, select the best choice of the four evolutionary processes listed below.​
-The reduced contribution of one phenotype in comparison to another to the next generation is an example of this.
A)​Mutation
B)​gene flow
C)​genetic drift
D)​natural selection

Accepted Answer

Natural selection is the process where certain phenotypes have a reduced or increased contribution to the next generation based on their fitness in a given environment.

Question 11

Deviations from __________ indicate that a population is evolving.

Accepted Answer

The answer of Deviations from __________ indicate that a population...

Question 12

Microevolution is change in the __________ of a population.

Accepted Answer

The answer of Microevolution is change in the __________ of...

Question 13

Mutations are the original source of new alleles, but may be adaptive, __________ or __________.

Accepted Answer

The answer of Mutations are the original source of new...

Question 14

Choose the most appropriate letter for each.
-genetic equilibrium
A)a reference point that implies stability of gene frequencies through generations
B)encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups
C)the genes of an entire population
D)the frequency of homozygous dominants in a population
E)the frequencies of dominant and recessive alleles in a population
F)the frequency of heterozygotes in a population
G)the frequency of homozygous recessives in a population
H)heterozygote advantage in regions where malaria is found
I)pesticide-resistant pests

Accepted Answer

Genetic equilibrium refers to a state where the gene frequencies in a population remain constant over generations, implying stability. Option A is the best choice as it specifically mentions this definition.

Question 15

For the following statements, select the best choice of the four evolutionary processes listed below.​
-The occurrence of mimicry is best explained as the ultimate result of this process.
A)​Mutation
B)​gene flow
C)​genetic drift
D)​natural selection

Accepted Answer

Mimicry is a trait that evolves through natural selection, as individuals with better mimicry have an advantage in avoiding predation and surviving to reproduce.

Question 16

For the following statements, select the best choice of the four evolutionary processes listed below.​
-This process produces new genetic variation within a species.
A)​Mutation
B)​gene flow
C)​genetic drift
D)​natural selection

Accepted Answer

Mutation refers to the process of creating new genetic variation within a species through changes in DNA sequence.

Question 17

Choose the most appropriate letter for each.
-2pq
A)a reference point that implies stability of gene frequencies through generations
B)encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups
C)the genes of an entire population
D)the frequency of homozygous dominants in a population
E)the frequencies of dominant and recessive alleles in a population
F)the frequency of heterozygotes in a population
G)the frequency of homozygous recessives in a population
H)heterozygote advantage in regions where malaria is found
I)pesticide-resistant pests

Accepted Answer

2pq represents the frequency of heterozygotes in a population according to the Hardy-Weinberg principle.

Question 18

For the following statements, select the best choice of the four evolutionary processes listed below.​
-This process can rapidly offset the effects of genetic isolation when two populations come into secondary contact.
A)​Mutation
B)​gene flow
C)​genetic drift
D)​natural selection

Accepted Answer

Gene flow is the movement of genetic material from one population to another, and can rapidly offset the effects of genetic isolation when two previously isolated populations come into contact. This is because new alleles can be introduced into a population that were not present before, which can change the frequency of genes and increase genetic diversity.

Question 19

Choose the most appropriate letter for each.​
-balanced polymorphism
A)​a reference point that implies stability of gene frequencies through generations
B)​encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups
C)​the genes of an entire population
D)​the frequency of homozygous dominants in a population
E)​the frequencies of dominant and recessive alleles in a population
F)​the frequency of heterozygotes in a population
G)​the frequency of homozygous recessives in a population
H)​heterozygote advantage in regions where malaria is found
I)​pesticide-resistant pests

Accepted Answer

The answer of Choose the most appropriate letter for each.​
-balanced...

Question 20

Choose the most appropriate letter for each. -p² A)a reference point that implies stability of gene frequencies through generations B)encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups C)the genes of an entire population D)the frequency of homozygous dominants in a population E)the frequencies of dominant and recessive alleles in a population F)the frequency of heterozygotes in a population G)the frequency of homozygous recessives in a population H)heterozygote advantage in regions where malaria is found I)pesticide-resistant pests

Accepted Answer

p² represents the frequency of homozygous dominants in a population according to the Hardy-Weinberg principle.

Quiz 17: Processes of Evolution

Individuals of a(n) __________ share a gene pool.

Choose the most appropriate letter for each. -gene pool

For the following statements, select the best choice of the four evolutionary processes listed below. -This is most likely to lead to the loss of genetic variation in a small population.

selection favors intermediate forms of a trait where selection favors extreme forms.

__________ shifts the range of variation in traits in one direction.

Choose the most appropriate letter for each. -directional selection

__________ occurs in different patterns depending on the species and selection pressures.

Choose the most appropriate letter for each. -q²

Choose the most appropriate letter for each. -species

For the following statements, select the best choice of the four evolutionary processes listed below. -The reduced contribution of one phenotype in comparison to another to the next generation is an example of this.

Deviations from __________ indicate that a population is evolving.

Microevolution is change in the __________ of a population.

Mutations are the original source of new alleles, but may be adaptive, or .

Choose the most appropriate letter for each. -genetic equilibrium

For the following statements, select the best choice of the four evolutionary processes listed below. -The occurrence of mimicry is best explained as the ultimate result of this process.

For the following statements, select the best choice of the four evolutionary processes listed below. -This process produces new genetic variation within a species.

Choose the most appropriate letter for each. -2pq

For the following statements, select the best choice of the four evolutionary processes listed below. -This process can rapidly offset the effects of genetic isolation when two populations come into secondary contact.

Choose the most appropriate letter for each. -balanced polymorphism

Choose the most appropriate letter for each. -p²

Quiz 17: Processes of Evolution

Individuals of a(n) __________ share a gene pool.

Choose the most appropriate letter for each.​ -gene pool

For the following statements, select the best choice of the four evolutionary processes listed below.​ -This is most likely to lead to the loss of genetic variation in a small population.

__________ selection favors intermediate forms of a trait where __________ selection favors extreme forms.

__________ shifts the range of variation in traits in one direction.

Choose the most appropriate letter for each.​ -directional selection

__________ occurs in different patterns depending on the species and selection pressures.

Choose the most appropriate letter for each. -q2

Choose the most appropriate letter for each.​ -species

For the following statements, select the best choice of the four evolutionary processes listed below.​ -The reduced contribution of one phenotype in comparison to another to the next generation is an example of this.

Deviations from __________ indicate that a population is evolving.

Microevolution is change in the __________ of a population.

Mutations are the original source of new alleles, but may be adaptive, __________ or __________.

Choose the most appropriate letter for each. -genetic equilibrium

For the following statements, select the best choice of the four evolutionary processes listed below.​ -The occurrence of mimicry is best explained as the ultimate result of this process.

For the following statements, select the best choice of the four evolutionary processes listed below.​ -This process produces new genetic variation within a species.

Choose the most appropriate letter for each. -2pq

For the following statements, select the best choice of the four evolutionary processes listed below.​ -This process can rapidly offset the effects of genetic isolation when two populations come into secondary contact.

Choose the most appropriate letter for each.​ -balanced polymorphism

Choose the most appropriate letter for each. -p2

Choose the most appropriate letter for each. -gene pool

For the following statements, select the best choice of the four evolutionary processes listed below. -This is most likely to lead to the loss of genetic variation in a small population.

selection favors intermediate forms of a trait where selection favors extreme forms.

Choose the most appropriate letter for each. -directional selection

Choose the most appropriate letter for each. -q²

Choose the most appropriate letter for each. -species

For the following statements, select the best choice of the four evolutionary processes listed below. -The reduced contribution of one phenotype in comparison to another to the next generation is an example of this.

Mutations are the original source of new alleles, but may be adaptive, or .

For the following statements, select the best choice of the four evolutionary processes listed below. -The occurrence of mimicry is best explained as the ultimate result of this process.

For the following statements, select the best choice of the four evolutionary processes listed below. -This process produces new genetic variation within a species.

For the following statements, select the best choice of the four evolutionary processes listed below. -This process can rapidly offset the effects of genetic isolation when two populations come into secondary contact.

Choose the most appropriate letter for each. -balanced polymorphism

Choose the most appropriate letter for each. -p²