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BE A
MILLIONAIRE?
Chapter 11
#1
A measure of how commonly a particular allele
Occurs in a population is known as the
A:
C:
Gene pool
Mutation rate
B:
D:
Allele frequency
Phenotype
B.
Allele
Frequency
#2
The more genetic variation a population
Has, the more likely it is that some
Individuals will
A:
Evolve
B:
Migrate
C:
Survive
D:
Mutate
C.
Survive
#3
Genetic variation can arise from a random
Change in the DNA of a gene. This change is
Called a(n)
A:
C:
Mutation
Gene Pool
B:
Gene flow
D:
Allele
A.
Mutation
#4
The normal shuffling of alleles during
Meiosis results is
A:
C:
Mutations
Reproduction
B:
D:
Hybridization
Recombination
D.
Recombination
#5
Which term means the crossing of
Two different species that share common
Genes?
A:
Mutation
B:
Hybridization
C:
Population
D:
Recombination
B.
Hybridization
#6
What is the observable change in the
Allele frequencies of a population over
Time called?
A:
C:
Selection
Distribution
B:
Microevolution
D:
Recombination
B.
Microevolution
#7
Natural selection that changes the
Distribution of a trait to favor one
Extreme phenotype is called
A:
Disruptive
selection
B:
Stabilizing
selection
C:
Normalizing
selection
D:
Directional
selection
D.
of
Directional
Selection
#8
In stabilizing selection, what occurs in
A population?
The population shifts
A: toward one of two
extreme phenotypes
The intermediate
C: phenotype becomes
more common
B:
Both extreme
phenotypes shift
toward the middle
D:
The intermediate
phenotype
becomes rare
C.
The intermediate
phenotype becomes
more common
#9
A population that is not undergoing
Natural selection displays what type of
Distribution?
A:
C:
Normal
Directional
B:
D:
Disruptive
Stabilizing
A.
Normal
#10
In a population of birds, intermediate
Beak size is selected against, and both
Very small and very large beak sizes are
Favored. What type of selection is this
An example of?
A:
Directional
B:
C:
Normal
D:
Disruptive
Stabilizing
B.
Disruptive
#11
Chance changes in allele frequencies
Within a population are called
A:
Gene flow
B:
C:
Genetic drift
D:
Gene pool
Sexual selection
C.
Genetic drift
#12
A small number of birds, blown off course
During migration, find an island and
Colonize it. This population will most
Likely experience genetic drift as a result
Of the
A:
C:
Founder effect
Sexual Selections
B:
D:
Bottleneck effect
Mutations
A.
Founder effect
#13
Fighting between male elephant seals
Over females is an example of
A:
Bottleneck effect
Intersexual
C: Selection
B:
Intrasexual selection
D: Founder effect
B.
Intrasexual
Effect
#14
What increases genetic variation when animals
Move from one population to another population?
A:
C:
Genetic drift
Bottleneck
effect
B:
D:
Sexual
selection
Gene flow
D.
Gene flow
#15
A problem in all populations influenced
By the bottleneck effect is that
A:
Genetic variation
is lost
B:
C:
Offspring inherit
harmful alleles
D:
Alleles can’t
become fixed
Chance no longer
affects them
A.
Genetic
variation is lost
#16
Which of the following conditions
Could mean that a population is in
Hardy-Weinberg equilibrium?
A:
C:
The population is
small
Mating is random
B:
D:
Gene flow is common
Mutations occur
frequently
C.
Mating is
random
#17
The Hardy-Weinberg equation is used to
A:
Estimate the rate of
mutations in a
population
Calculate the gene
C: flow rate among
organisms
B:
Determine the
likelihood random
mating
D:
Predict genotype
frequencies in a
population
D.
Predict genotype
frequencies in a
population
#18
The five factors that can lead to evolution
Are gene flow, genetic drift, mutation,
Natural selection, and
A:
C:
Sexual
selection
Emigration
B: Controlled
D:
mating
Immigration
A.
Sexual
Selection
#18
Mutations are important because
They bring about
A:
Death of the
organism in which
they develop
Benefits for the
C: individual, but not for
the populaiton
B:
Genetic variation
needed for a
population to evolve.
D:
Hardy-Weinberg
equilibrium within a
population
B.
Genetic variation
needed for a
population to
evolve
#19
Which of the following statements
Applies to real populations?
Mutations are rarely
A:
passed of offspring
Gene flow represses
C: alleles for desirable
traits
B:
D:
Hardy-Weinberg
equilibrium is rare
Evolution cannot
occur in large
populations
B.
Hardy-Weinberg
equilibrium is
rare
#20
What is speciation?
A:
Combining of two
species to form one
with different traits.
Timing of mating that
C: prevents normal sexual
selection.
B:
Isolation that affects
mating behaviour.
Divergence of two or
D: more species from an
existing one.
b.
Divergence of two
or more species
from an existing
one.
#21
A difference of chemical scents between two populations
is an example of what type of isolation?
A:
Temporal
B:
C:
geographic
D:
behavioural
disruptive
b.
behavioural.
#22
An earthquake causes an ocean channel to open up on
an island where a low area previously existed. The
island’s lizard population is now separated on the two
parts of the island, providing an example of…
A:
C:
…Geographic
isolation
…Disruptive
isolation
B:
D:
…Behavioral
isolation
…Temporal
isolation
A.
Geographic
isolation.
#23
Which of the following examples illustrate a
temporal barrier to mating between
populations?
Populations of the same
A: types of seal live on
islands too far apart to
swim to one another.
Species of birds have
B:elaborate courtship dances,
and females select only the
“best” males
Varieties of oak tree produce
pollen during different seasons,
C: so they can’t pollinate one
another
Herds of caribou misinterpret
one another’s mating
D: behaviour, so they fight
instead of mate.
C.
Varieties of oak trees
produce pollen at different
seasons, so they can’t
pollinate one another.
#24
What type of isolation occurs when two
populations of birds have different courtship
dances?
A:
C:
Geographic
Temporal
B:
D:
sexual
behavioral
D.
Behavioral
#25
Which of the following processes is considered
to be “random”?
A:
Genetic
mutation
B:
Natural
selection
C:
Adaptive radiation
D:
coevolution
A.
Genetic
mutation
#26
The American Flying squirrel and flying phalanger
of Australia live in similar environments and
look very similar. However, they are not
closely related. Their resemblance is
most likely an example of…
A:
C:
Sexual
selection
Divergent
evolution
B:
Temporal
isolation
D:
Convergent
evolution
C.
Convergent
evolution
#27
The Galápagos Islands in the Pacific Ocean
have varied habitats. Divergent evolution
is occurring on these islands – meaning
the species that live there…
A:
C:
Have lived
unchanged.
Change in response
to what they
encounter.
B:
Are becoming more
like each other.
D:
Had common
ancestors, but have
become difference.
D.
Had common
ancestors, but are
becoming increasingly
different.
#28
Like all flowering plants, the snapdragon
must be pollinated to reproduce, but it’s
flowers are closed. A bumblebee has just
enough weight to open a snapdragon
flower by landing upon it. This adaptation
is an example of….
A:
C:
Convergent
evolution
Divergent
evolution
B:
D:
Coevolution
speciation
D.
Coevolution
#29
The total and permanent disappearance
of a species from Earth is called
A:
C:
radiation
extinction
B:
D:
coevolution
equilibrium
C.
Extinction
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