This statement: Extinct fossil species are typically succeeded by similar living species
-- ANSWER => Extinct and living forms represent ancestors and descendants
Which is an example of developmental homology
a) gene content
b) similar organismal structures
c)vestigial traits
d) similar embryonic traits -- ANSWER => d)
Which is not one of Darwin's 4 Postulates:
a) Individuals in a population vary in their traits
b) These differences are not heritable; they are not passed onto offspring
c) In each generation, many more offspring are produced than can survive
d) Individuals with certain heritable traits are more likely to survive and reproduce --
ANSWER => b)
Explanation: These differences ARE heritable and ARE passed onto offspring
Evolution by natural selection occurs when... -- ANSWER => heritable variation leads to
differential reproductive success
Individuals with certain heritable traits are more likely to survive and reproduce. Is this
statement true? -- ANSWER => Yes
Which of the following are evidence for evolution? (many may apply)
,i) Fossils
ii)Vestigial traits
iii)Transitional Forms
iv)Non-transitional forms -- ANSWER => i), ii), iii)
The bacterium Mycobacterium tuberculosis causes tuberculosis (TB)
Rifampin is an antibiotic used as treatment
DNA from rifampin-resistant bacteria has a single point mutation in the rpoB gene
Rifampin works by interfering with bacterial RNA polymerase, but the mutation prevents
this
During antibiotic therapy with rifampin, bacteria cells with normal RNA polymerase grow
more slowly or die, but those with mutant RNA polymerase proliferate.
Did natural selection occur? What happened? -- ANSWER => Natural selection occurred and
allowed for the survival and reproduction of antibiotic-resistant bacteria
Is this statement true or false:
Evolution is goal directed -- ANSWER => False, evolution is not goal directed
Which is not an example of a fitness trade off?
a) Brain size
b)Parental Care
c)Sickle cell anemia
d)Pleiotropic effects
e) None of the above, they are all examples -- ANSWER => e)
What are the assumptions of Hardy-Weinberg equilibrium?
a) Natural selection, genetic drift, gene flow, mutation, biased mating
b)No Natural selection, No genetic drift, No gene flow, No mutation, No biases mating --
ANSWER => b)
How does natural selection affect genetic variation?
, a) can lead to maintenance, increase or reduction of genetic variation
b) Reduces genetic variation
c)May increase genetic variation by introducing more alleles; may decrease it by removing
alleles
d)Increases genetic variation
e)No change -- ANSWER => a)
Explanation:
b) is genetic drift
c) gene flow
d) mutation
e) biased mating
Which is not a type of natural selection?
a) Directional Selection
b)Depressional Selection
c) Disruptive selection
d) Balancing selection -- ANSWER => b)
When fitness is highest in rare phenotypes, it is characterized as:
a) Negative frequency dependent selection
b) Positive frequency dependent selection -- ANSWER => a)
Explanation:
b) fitness is highest in COMMON phenotypes
Which is a pattern of natural selection
a) Heterozygotes typically have higher fitness than homozygotes
b) Homozygotes have higher fitness than heterozygotes
-- ANSWER => Extinct and living forms represent ancestors and descendants
Which is an example of developmental homology
a) gene content
b) similar organismal structures
c)vestigial traits
d) similar embryonic traits -- ANSWER => d)
Which is not one of Darwin's 4 Postulates:
a) Individuals in a population vary in their traits
b) These differences are not heritable; they are not passed onto offspring
c) In each generation, many more offspring are produced than can survive
d) Individuals with certain heritable traits are more likely to survive and reproduce --
ANSWER => b)
Explanation: These differences ARE heritable and ARE passed onto offspring
Evolution by natural selection occurs when... -- ANSWER => heritable variation leads to
differential reproductive success
Individuals with certain heritable traits are more likely to survive and reproduce. Is this
statement true? -- ANSWER => Yes
Which of the following are evidence for evolution? (many may apply)
,i) Fossils
ii)Vestigial traits
iii)Transitional Forms
iv)Non-transitional forms -- ANSWER => i), ii), iii)
The bacterium Mycobacterium tuberculosis causes tuberculosis (TB)
Rifampin is an antibiotic used as treatment
DNA from rifampin-resistant bacteria has a single point mutation in the rpoB gene
Rifampin works by interfering with bacterial RNA polymerase, but the mutation prevents
this
During antibiotic therapy with rifampin, bacteria cells with normal RNA polymerase grow
more slowly or die, but those with mutant RNA polymerase proliferate.
Did natural selection occur? What happened? -- ANSWER => Natural selection occurred and
allowed for the survival and reproduction of antibiotic-resistant bacteria
Is this statement true or false:
Evolution is goal directed -- ANSWER => False, evolution is not goal directed
Which is not an example of a fitness trade off?
a) Brain size
b)Parental Care
c)Sickle cell anemia
d)Pleiotropic effects
e) None of the above, they are all examples -- ANSWER => e)
What are the assumptions of Hardy-Weinberg equilibrium?
a) Natural selection, genetic drift, gene flow, mutation, biased mating
b)No Natural selection, No genetic drift, No gene flow, No mutation, No biases mating --
ANSWER => b)
How does natural selection affect genetic variation?
, a) can lead to maintenance, increase or reduction of genetic variation
b) Reduces genetic variation
c)May increase genetic variation by introducing more alleles; may decrease it by removing
alleles
d)Increases genetic variation
e)No change -- ANSWER => a)
Explanation:
b) is genetic drift
c) gene flow
d) mutation
e) biased mating
Which is not a type of natural selection?
a) Directional Selection
b)Depressional Selection
c) Disruptive selection
d) Balancing selection -- ANSWER => b)
When fitness is highest in rare phenotypes, it is characterized as:
a) Negative frequency dependent selection
b) Positive frequency dependent selection -- ANSWER => a)
Explanation:
b) fitness is highest in COMMON phenotypes
Which is a pattern of natural selection
a) Heterozygotes typically have higher fitness than homozygotes
b) Homozygotes have higher fitness than heterozygotes
