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

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

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