Question Details

BIO 130 MODULE 5 CHECK YOUR UNDERSTANDING
1.	Stabilizing selection would be present if:
a.    gene frequencies do not change from one generation to the next.
b.    mutations constantly replace the genes lost from one generation to the next.
c.    there are no selecting agents.
d.    all of the choices apply.
Hint: Section 13.7
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8S:Explain how survival, reproductive success, and mate selection can alter gene frequency from one 
generation to the next.
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2.	Controlled mating of two parents of the same species, with different genotypes, to get the best combination of traits results in a(n):
a.    clone.
b.    new species.
c.    interspecific hybrid.
d.    intraspecific hybrid.
Hint: Section 12.5
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8B:Explain how hybrid plants and animals are produced.
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3.	New genes are introduced into a gene pool by:
a.    evolution.
b.    spontaneous mutations.
c.    natural selection.
d.    inheritance of acquired characteristics.
Hint: Section 13.1, Section 13.9, and Section 13.10
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8N:Describe how mutation and migration affect the genetic diversity of a population.
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4.	The theory of natural selection was proposed:
a.    independently by Darwin.
b.    jointly by Darwin and Wallace.
c.    independently by Mendel.
d.    jointly by Wallace and Lamarck.
Hint: Section 13.2
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8R:List the assumptions by Darwin that were important to his developing the theory of natural selection.
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5.	All of the genes shared by a population are its:
a.    gene frequency.
b.    gene pool.
c.    fitness.
d.    gene flow.
Hint: Section 12.1
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8C:Distinguish between gene pool and genetic diversity.
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6.	Which one of the following would have the greatest genetic diversity?
a.    An organism
b.    A population
c.    A species
d.    All could have similar genetic diversity
Hint: Section 12.4
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8G:Explain how each of the following affects the genetic diversity within populations: mutation, 
sexual reproduction, population size, and migration.
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7.	Which of the following would be necessary for evolution to take place?
a.    A large population
b.    Genetic diversity within populations
c.    Asexual reproduction
d.    Separate male and female sexes
Hint: Section 13.2 and Section 13.3
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8M:State why genetic diversity is essential for natural selection to occur.
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8.	Many kinds of disease-causing bacteria are resistant to the standard antibiotics that we use to control them. This is because:
a.    when bacteria are exposed to antibiotics, they mutate.
b.    there is genetic variety within the species, and those that already have genes for resistance are 
          the ones that reproduce.
c.    new species of bacteria have evolved that are resistant to antibiotics.
d.    when the size of the population of a species of bacterium is reduced, genetic variety decreases.
Hint: Section 13.1, Section 13.3, and Section 13.4
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8G:Explain how each of the following affects the genetic diversity within populations: mutation, sexual 
reproduction, population size, and migration.
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9.	Sexual selection can:
a.    change the gene frequency.
b.    lower the reproductive rate.
c.    prevent natural selection.
d.    not be a selecting agent.
Hint: Section 13.6
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8P:Explain why excess reproduction is important to the concept of natural selection.
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10.	Hybrid plants are produced by __________ reproduction.
a.    cloning
b.    asexual
c.    vegetative
d.    sexual
Hint: Section 12.5
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8B:Explain how hybrid plants and animals are produced.
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11.	Which of the following is a common selective agent for natural selection?
a.    Mutations
b.    Competition for food and other resources
c.    Sex ratio
d.    Population size
Hint: Section 13.2 and Section 13.3
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8I:Explain how the concepts of evolution and natural selection are related.
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12.	If a bacterium with the ability to survive the effects of an antibiotic "pops up" in a population, it most likely:
a.    resulted from spontaneous mutation.
b.    increased in number before the antibiotic began to be used.
c.    was introduced from another species.
d.    was created by the antibiotic.
Hint: Section 13.1
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8N:Describe how mutation and migration affect the genetic diversity of a population.
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13.	If two populations of a species show significant structural differences, it is likely that:
a.    there is little sexual reproduction between populations.
b.    they are reproductively isolated.
c.    each is specifically adapted to a certain environmental situation.
d.    all of the choices apply.
Hint: Section 12.2
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8G:Explain how each of the following affects the genetic diversity within populations: mutation, sexual 
reproduction, population size, and migration.
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14.	One species of plant contains several different groups. Each group is slightly different from the other and capable of sexual reproduction. These groups are called:
a.    subspecies.
b.    clones.
c.    species.
d.    mutations.
Hint: Section 12.2
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8A:Differentiate between the biological species concept and the morphological species concept.
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15.	If you want to obtain more plants that are exactly like the parent plant, reproduction would be done:
a.    by producing hybrids.
b.    sexually.
c.    with gametes.
d.    asexually.
Hint: Section 12.5
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8D:Relate cloning and hybridization to asexual and sexual reproduction.
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16.	Which of the following would generate new genes for a species?
a.    Inbreeding among a small number of individuals
b.    Crossing over during meiosis
c.    Independent assortment during anaphase I of meiosis
d.    Mutation in the gametes
Hint: Section 12.3 and Section 12.5
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8L:Explain how natural selection can change the nature of a species.
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17.	Eugenic laws were enacted in an attempt to:
a.    prevent some individuals from reproducing.
b.    eliminate "bad genes" from the human population.
c.    improve the human gene pool.
d.    all of the choices apply.
Hint: Section 12.7 and Section 12.8
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8E:Explain how a lack of understanding about population genetics contributed to the eugenics movements.
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18.	A small group of white-tailed deer cross the frozen water of Lake Michigan and establish a population on a remote island. This small group of deer can best be described as:
a.    renegades.
b.    a founding population.
c.    a newly formed species.
d.    a new gene pool.
Hint: Section 12.4
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8H:Describe three processes that could result in different populations of the same species having different
 gene combinations.
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19.	Which of the following would be an indication that evolutionary change is occurring within a species?
a.    The number of organisms in the species is increasing
b.    New learned behavior patterns are appearing
c.    No mutations have occurred within individuals of the species
d.    Some alleles have been lost from the species
Hint: Section 13.5 and Section 13.6
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8Q:Describe the contributions of the following individuals to the evolutionary thought: Lamarck, Buffon,
 Wallace, and Darwin.
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20.	Which of these factors would be involved in maintaining a constant gene frequency in a population?
a.    Dominant alleles
b.    Lack of migration
c.    High rate of mutation
d.    A caste system that determines whom one can marry
Hint: Section 13.9
SLO8:Examine the concepts of evolution and natural selection and explain how these concepts are related.
LO8S:Explain how survival, reproductive success, and mate selection can alter gene frequency from one
 generation to the next.
	
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