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

Need help with your exam preparation?

Existing Quiz Clients Login here
Question #1
The modern definition of evolution is:
A.   Scientists have still not defined evolution
B.   Descent with modification
C.   Survival of the fittest
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.   revisionist evolutionary theory.
B.   punctuated equilibrium theory.
C.   evolutionary or modern synthesis.
D.   fitness fusion.
Question #3
All of the following can change gene frequencies from one generation to the next EXCEPT
A.   Devolution
B.   Migration
C.   Mutation
D.   Natural selection
Question #4
All of the following affect allele frequencies EXCEPT
A.   genetic shift
B.   migration
C.   natural selection
D.   genetic drift
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.   exchange of genes between populations
C.   chance loss of alleles in a population
D.   differential reproductive success of individuals
Question #7
Mutation can change gene frequencies when
A.   When X-Men threaten the world
B.   The mutation changes the gene itself and the gene spreads through the population
C.   Devolution occurs
D.   False; mutations cannot change gene frequencies
Question #8
Gene flow can change gene frequencies when
A.   Individuals from two different populations produce offspring
B.   Individuals move from one population to another
C.   False; gene flow cannot change gene frequencies
D.   Speciation occurs
Question #9
Migration can change gene frequencies when
A.   False; migration cannot change gene frequencies
B.   Individuals move from one population to another
C.   Individuals from two different populations produce offspring
D.   Speciation occurs
Question #10
What is gene flow defined as?
A.   exchange of genes between populations
B.   chance loss of alleles in a population
C.   production of new alleles
D.   differential reproductive success of individuals
Question #11
Mutations may cause:
A.   the production of new alleles
B.   a chance loss of alleles in a population
C.   the exchange of genes between populations
D.   differential reproductive success of individuals
Question #12
What can genetic drift cause?
A.   exchange of genes between populations
B.   differential reproductive success of individuals
C.   chance loss of alleles in a population
D.   production of new alleles
Question #13
Genetic drift is
A.   the opposite of founder effect
B.   the change in allele frequencies produced by random factors
C.   the change in allele frequencies produced by nonrandom 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.   stabilization of gene flow
B.   enhancement of adaptation
C.   equilibrium of population genetics
D.   founders effect
Question #15
The ABO blood type system consists of ______ alleles.
A.   3
B.   6
C.   4
D.   2
Question #16
What is type AB blood an example of?
A.   blending
B.   codominance
C.   recessiveness
D.   dominance
Question #17
Which of the following types of traits are governed by more than one genetic locus?
A.   Mendelian
B.   polygenic
C.   recessive
D.   dominant
Question #18
Continuously varying traits
A.   can be greatly impacted by the environment.
B.   All of these statements are correct
C.   a single gene has only a small effect on the phenotype.
D.   are affected by genes at many loci.
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.   individuals behave in ways that benefit other individuals in the group
D.   by the principles of Mendelian inheritance and variation hidden as recessive alleles
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.   mutation and recombination
B.   homologous traits and interspecific variation
C.   natural selection and genetic drift
D.   genetic drift and the founder effect

Need help with your exam preparation?

Existing Quiz Clients Login here