Question 1

In a population of rabbits,those able to outrun predators will survive to reproduce,eventually leading to a population of faster rabbits.This is an example of ____ selection.

Accepted Answer

A)  directional
B)  stabilizing
C)  disruptive
D)  mutational
E)  restricted A

Question 2

For each statement, select the genetic evolutionary concept that best represents the description.
-Change in allele frequency due to chance alone.

Accepted Answer

A)  genetic drift
B)  inbreeding
C)  bottleneck
D)  founder effect
E)  fixedF) gene flow A

Question 3

Peahens prefer to mate with peacocks that have the brightest and largest tail displays.The peacock's tail is a disadvantage to the males,because it is large and cumbersome and hinders them from escaping from predators.Given these facts,why isn't the peacock's tail selected against by natural selection?

Accepted Answer

A)  peacocks lack the mutations to allow selection to work
B)  only a few peacocks have large tail displays
C)  in spite of the disadvantage, peacocks with larger tails leave more offspring
D)  it is selected against, but because a peahen gives birth to so many males, the population is not greatly affected
E)  peacocks do not reproduce sexually C

Question 4

A ____ is a structural modification that enables an individual to exploit their habitat more efficiently.

Accepted Answer

A)  key innovation
B)  mutation
C)  morphological convergence
D)  morphological divergence
E)  homologous structure

Question 5

In the universal ABO blood grouping system,there are four phenotypes - A,B,AB,and O - which are determined by three different alleles.The presence of three alleles in the ABO blood grouping system is an example of ____.

Accepted Answer

A)  a polymorphism
B)  genetic drift
C)  the bottleneck effect
D)  a dimorphism
E)  the founder effect

Question 6

Match the evolutionary concepts correctly with the correct description or example.Some choices may be used more than once.
-A change in allele frequencies in a population that does not result from adaptation or natural selection.

Accepted Answer

A)  reproductive isolation
B)  sexual selection
C)  directional selection
D)  disruptive selection
E)  genetic driftF) founder effectG) gene flowH) stabilizing selection

Question 7

Phylogeny is most analogous to a ____.

Accepted Answer

A)  family genealogy
B)  burst of new computer technology
C)  telescopic view of the early universe
D)  traffic light
E)  roller coaster

Question 8

In 2000,87% of the wild rat populations in Stadtlohn,Germany was resistant to the poison bromadiolone.This indicates that ____was/were commonly used as a rat poison(s)here,and the rat's resistance is an example of ____ selection.

Accepted Answer

A)  warfarin; directional
B)  bromadiolone; directional
C)  both warfarin and bromadiolone; disruptive
D)  neither warfarin nor bromadiolone; stabilizing
E)  bromadiolone; disruptive

Question 9

A cladogram can be viewed as "sets within sets" of derived traits.Which features distinguish the clade containing mice and humans from the other clades in this cladogram?

Accepted Answer

A)  multicellular with legs
B)  multicellular with hair
C)  multicellular with a backbone
D)  multicellular
E)  multicellular with a backbone, legs and hair

Question 10

Match the evolutionary concepts correctly with the correct description or example.Some choices may be used more than once.
-The migration of bison from one herd to another results in this.

Accepted Answer

A)  reproductive isolation
B)  sexual selection
C)  directional selection
D)  disruptive selection
E)  genetic driftF) founder effectG) gene flowH) stabilizing selection

Question 11

A major change in evolutionary patterns over long periods of time is best described as ____.

Accepted Answer

A)  macroevolution
B)  microevolution
C)  allopatric speciation
D)  directional selection
E)  sympatric speciation

Question 12

The graphs below show the frequency of the b+ allele over twenty generations in two populations of heterozygous flour beetles (data for a population of ten individuals is shown in graph A; data for a population of one hundred individuals is shown in graph B).Why does the frequency of the b+ allele increase in both populations?

Accepted Answer

A)  b+ is a lethal allele
B)  b+ is a balanced polymorphism
C)  b+ is a fixed allele
D)  the b+ allele is adaptive
E)  b+ is a neutral mutation

Question 13

For each statement, select the best choice that represents the description given.
-the presence of antlers on male deer but not on female deer

Accepted Answer

A)  character
B)  Clade
C)  cladistics
D)  microevolution
E)  dimorphismF) phylogenyG) balanced polymorphismH) cladogramI) fixed allele

Question 14

A group of organisms sharing a derived trait is known as a ____.

Accepted Answer

A)  clade
B)  taxon
C)  tribe
D)  community
E)  population

Question 15

Match the evolutionary concepts correctly with the correct description or example.Some choices may be used more than once.
-Large antlers are energetically costly and may get stuck on branches,but females prefer to mate with bucks with the largest antlers.

Accepted Answer

A)  reproductive isolation
B)  sexual selection
C)  directional selection
D)  disruptive selection
E)  genetic driftF) founder effectG) gene flowH) stabilizing selection

Question 16

Traits with more than two distinct forms are ____.

Accepted Answer

A)  polymorphic
B)  dimorphic
C)  codominant
D)  heterozygous
E)  homozygous

Question 17

The process of speciation always includes ____ isolation.

Accepted Answer

A)  behavioral
B)  temporal
C)  reproductive
D)  ecological
E)  geographic

Question 18

Natural selection drives changes in allele frequencies by influencing traits with a ____ basis.

Accepted Answer

A)  genetic
B)  non-genetic
C)  asexual
D)  lethal
E)  intermediate

Question 19

Heterozygotes for the sickle cell trait have an adaptive advantage in areas where malaria is prevalent.This is an example of ____.

Accepted Answer

A)  a fixed allele
B)  genetic drift
C)  a balanced polymorphism
D)  sexual selection
E)  disruptive selection

Question 20

Fatter sociable weaver birds spend more time foraging where they are vulnerable to predation,are more attractive to predators,and are less likely to escape an attack.Conversely,thin birds risk starvation.Therefore,sociable weaver of an intermediate weight have a selective advantage.This is an example of ____ selection.

Accepted Answer

A)  frequent
B)  directional
C)  disruptive
D)  stabilizing
E)  mutational

Exam 12: Processes Of Evolution

In a population of rabbits,those able to outrun predators will survive to reproduce,eventually leading to a population of faster rabbits.This is an example of ____ selection.

For each statement, select the genetic evolutionary concept that best represents the description. -Change in allele frequency due to chance alone.

A ____ is a structural modification that enables an individual to exploit their habitat more efficiently.

In the universal ABO blood grouping system,there are four phenotypes - A,B,AB,and O - which are determined by three different alleles.The presence of three alleles in the ABO blood grouping system is an example of ____.

Match the evolutionary concepts correctly with the correct description or example.Some choices may be used more than once. -A change in allele frequencies in a population that does not result from adaptation or natural selection.

Phylogeny is most analogous to a ____.

In 2000,87% of the wild rat populations in Stadtlohn,Germany was resistant to the poison bromadiolone.This indicates that was/were commonly used as a rat poison(s) here,and the rat's resistance is an example of selection.

A cladogram can be viewed as "sets within sets" of derived traits.Which features distinguish the clade containing mice and humans from the other clades in this cladogram?

Match the evolutionary concepts correctly with the correct description or example.Some choices may be used more than once. -The migration of bison from one herd to another results in this.

A major change in evolutionary patterns over long periods of time is best described as ____.

For each statement, select the best choice that represents the description given. -the presence of antlers on male deer but not on female deer

A group of organisms sharing a derived trait is known as a ____.

Match the evolutionary concepts correctly with the correct description or example.Some choices may be used more than once. -Large antlers are energetically costly and may get stuck on branches,but females prefer to mate with bucks with the largest antlers.

Traits with more than two distinct forms are ____.

The process of speciation always includes ____ isolation.

Natural selection drives changes in allele frequencies by influencing traits with a ____ basis.

Heterozygotes for the sickle cell trait have an adaptive advantage in areas where malaria is prevalent.This is an example of ____.

Exam 12: Processes Of Evolution

In a population of rabbits,those able to outrun predators will survive to reproduce,eventually leading to a population of faster rabbits.This is an example of ____ selection.

For each statement, select the genetic evolutionary concept that best represents the description. -Change in allele frequency due to chance alone.

A ____ is a structural modification that enables an individual to exploit their habitat more efficiently.

In the universal ABO blood grouping system,there are four phenotypes - A,B,AB,and O - which are determined by three different alleles.The presence of three alleles in the ABO blood grouping system is an example of ____.

Match the evolutionary concepts correctly with the correct description or example.Some choices may be used more than once. -A change in allele frequencies in a population that does not result from adaptation or natural selection.

Phylogeny is most analogous to a ____.

In 2000,87% of the wild rat populations in Stadtlohn,Germany was resistant to the poison bromadiolone.This indicates that ____was/were commonly used as a rat poison(s) here,and the rat's resistance is an example of ____ selection.

A cladogram can be viewed as "sets within sets" of derived traits.Which features distinguish the clade containing mice and humans from the other clades in this cladogram?

Match the evolutionary concepts correctly with the correct description or example.Some choices may be used more than once. -The migration of bison from one herd to another results in this.

A major change in evolutionary patterns over long periods of time is best described as ____.

For each statement, select the best choice that represents the description given. -the presence of antlers on male deer but not on female deer

A group of organisms sharing a derived trait is known as a ____.

Match the evolutionary concepts correctly with the correct description or example.Some choices may be used more than once. -Large antlers are energetically costly and may get stuck on branches,but females prefer to mate with bucks with the largest antlers.

Traits with more than two distinct forms are ____.

The process of speciation always includes ____ isolation.

Natural selection drives changes in allele frequencies by influencing traits with a ____ basis.

Heterozygotes for the sickle cell trait have an adaptive advantage in areas where malaria is prevalent.This is an example of ____.

In 2000,87% of the wild rat populations in Stadtlohn,Germany was resistant to the poison bromadiolone.This indicates that was/were commonly used as a rat poison(s) here,and the rat's resistance is an example of selection.