Anthropology 101 - Human Biological Evolution » Fall 2020 » Evolution and Genetics Quiz

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Question #1
The modern definition of evolution is:
A.   Descent with modification
B.   Survival of the fittest
C.   Scientists have still not defined evolution
D.   A change in gene frequencies from generation to generation
Question #2
The expanded description of evolution put forward by scientists since Darwin’s research is referred to as the
A.   fitness fusion.
B.   evolutionary or modern synthesis.
C.   punctuated equilibrium theory.
D.   revisionist evolutionary theory.
Question #3
All of the following can change gene frequencies from one generation to the next EXCEPT
A.   Devolution
B.   Natural selection
C.   Mutation
D.   Migration
Question #4
All of the following affect allele frequencies EXCEPT
A.   migration
B.   genetic drift
C.   natural selection
D.   genetic shift
Question #5
The processes of evolution are
A.   mutation, gene flow, genetic drift, and natural selection.
B.   genetic variation, phenotypic variation, adaptation, and exaptation.
C.   stabilizing selection, directional selection, and disruptive selection.
D.   natural selection, directional selection, and stabilizing selection.
Question #6
Natural selection changes gene frequencies because:
A.   production of new alleles
B.   chance loss of alleles in a population
C.   exchange of genes between populations
D.   differential reproductive success of individuals
Question #7
Mutation can change gene frequencies when
A.   When X-Men threaten the world
B.   False; mutations cannot change gene frequencies
C.   The mutation changes the gene itself and the gene spreads through the population
D.   Devolution occurs
Question #8
Gene flow can change gene frequencies when
A.   False; gene flow cannot change gene frequencies
B.   Speciation occurs
C.   Individuals move from one population to another
D.   Individuals from two different populations produce offspring
Question #9
Migration can change gene frequencies when
A.   False; migration cannot change gene frequencies
B.   Individuals from two different populations produce offspring
C.   Speciation occurs
D.   Individuals move from one population to another
Question #10
What is gene flow defined as?
A.   differential reproductive success of individuals
B.   chance loss of alleles in a population
C.   exchange of genes between populations
D.   production of new alleles
Question #11
Mutations may cause:
A.   the production of new alleles
B.   the exchange of genes between populations
C.   differential reproductive success of individuals
D.   a chance loss of alleles in a population
Question #12
What can genetic drift cause?
A.   exchange of genes between populations
B.   production of new alleles
C.   chance loss of alleles in a population
D.   differential reproductive success of individuals
Question #13
Genetic drift is
A.   not evolutionary change
B.   the change in allele frequencies produced by nonrandom factors
C.   the opposite of founder effect
D.   the change in allele frequencies produced by random factors
Question #14
The _________________ usually occurs after genetic drift in a group that remains reproductively isolated (avoids mating with individuals) from surrounding groups.
A.   equilibrium of population genetics
B.   stabilization of gene flow
C.   enhancement of adaptation
D.   founders effect
Question #15
The ABO blood type system consists of ______ alleles.
A.   4
B.   6
C.   3
D.   2
Question #16
What is type AB blood an example of?
A.   dominance
B.   codominance
C.   recessiveness
D.   blending
Question #17
Which of the following types of traits are governed by more than one genetic locus?
A.   polygenic
B.   dominant
C.   Mendelian
D.   recessive
Question #18
Continuously varying traits
A.   a single gene has only a small effect on the phenotype.
B.   are affected by genes at many loci.
C.   can be greatly impacted by the environment.
D.   All of these statements are correct
Question #19
Darwin was not able to explain how variation is maintained among individuals. Which of the following is a partial explanation of how variation is maintained among individuals?
A.   the mechanism of natural selection
B.   through the mechanism of blending inheritance
C.   by the principles of Mendelian inheritance and variation hidden as recessive alleles
D.   individuals behave in ways that benefit other individuals in the group
Question #20
Darwin was not able to explain the how novel traits might appear in a species or how a species may move beyond their initial range of variation. Which of the following genetic phenomena contribute to the appearance of novel traits among individuals?
A.   homologous traits and interspecific variation
B.   genetic drift and the founder effect
C.   natural selection and genetic drift
D.   mutation and recombination

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