Indicate the effect of this condition of the Hardy-Weinberg principle on genotyp
ID: 15000 • Letter: I
Question
Indicate the effect of this condition of the Hardy-Weinberg principle on genotype and allele frequencies: assortative matinga.alters genotype and allele frequencies
b.alters genotype only
c.alters allele frequency only
d.does not alter genotype or allele frequency
Polydactylism (possessing more than five fingers per hand) within the Amish population in Pennsylvania is considered an example of founder effect. This is because the frequency of polydactylism among the Amish in Pennsylvania is identical to its frequency among the Amish population in Germany.
a.true.
b.false
A population of bacteria is in Hardy-Weinberg equilibrium. However, through repeated exposure to an antibiotic, the frequency of the recessive allele is rapidly increasing. What is the most likely explanation for this response? The recessive allele is responsible for susceptibility of the bacteria to the antibiotic.
a.The dominant allele is responsible for susceptibility of the bacteria to the antibiotic.
b.The recessive allele is responsible for resistance of the bacteria to the antibiotic.
c.The population is experiencing gene flow.
d.The population is experiencing disruptive selection.
Biotic environments that influence natural selection includes all but which of the following?
a.competition
b.predation
c.parasitism
d.weather
e.disease
Why does the malaria disease persist in the human population?
a.Too few humans have died of malaria to end the disease.
b.Multiple phenotypes survive in a balanced polymorphism.
c.Malaria is a recessive disease and few humans are ever sick.
d.Humans are protected from the malaria parasite.
e.The disease is under stabilizing selection.
In random mating,;
A.individuals choose the most attractive mate.
B.there is no influence on mate choice.
C.breeding occurs between two different species.
D.breeding occurs between two different subspecies.
E.fertile offspring are not produced.
A fraction of the original green frog population survives to reproduce and generate the new population. If the survivors of the original population survived by chance, then this event is an example of
A.natural selection.
B.genetic drift.
C.founder effect.
D.industrial melanism.
Which of the following is most likely an example of a founder effect event?
A.A random small group of a bird population migrates to an island and then returns to breed.
B.A random large group of a bird population migrates to an island and then returns to breed.
C.A selected small group of a bird population migrates to an island and then returns to breed.
D.A random small group of a bird population migrates to an island and does not return to breed.
E.A random large group of a bird population migrates to an island and does not return to breed.
Microevolution is not influenced by which of the following?
A.mutation
B.random mating
C.gene flow
D.natural selection
E.genetic drift
Explanation / Answer
Indicate the effect of this condition of the Hardy-Weinberg principle on genotype and allele frequencies: assortative mating
a.alters genotype and allele frequencies
b.alters genotype only
c.alters allele frequency only
d.does not alter genotype or allele frequency
Polydactylism (possessing more than five fingers per hand) within the Amish population in Pennsylvania is considered an example of founder effect. This is because the frequency of polydactylism among the Amish in Pennsylvania is identical to its frequency among the Amish population in Germany.
a.true.
b.false
A population of bacteria is in Hardy-Weinberg equilibrium. However, through repeated exposure to an antibiotic, the frequency of the recessive allele is rapidly increasing. What is the most likely explanation for this response? The recessive allele is responsible for susceptibility of the bacteria to the antibiotic.
a.The dominant allele is responsible for susceptibility of the bacteria to the antibiotic.
b.The recessive allele is responsible for resistance of the bacteria to the antibiotic.
c.The population is experiencing gene flow.
d.The population is experiencing disruptive selection.
Biotic environments that influence natural selection includes all but which of the following?
a.competition
b.predation
c.parasitism
d.weather-abiotic
e.disease
Why does the malaria disease persist in the human population?
a.Too few humans have died of malaria to end the disease.
b.Multiple phenotypes survive in a balanced polymorphism.
c.Malaria is a recessive disease and few humans are ever sick.
d.Humans are protected from the malaria parasite.
e.The disease is under stabilizing selection.
In random mating,;
A.individuals choose the most attractive mate.
B.there is no influence on mate choice.
C.breeding occurs between two different species.
D.breeding occurs between two different subspecies.
E.fertile offspring are not produced.
A fraction of the original green frog population survives to reproduce and generate the new population. If the survivors of the original population survived by chance, then this event is an example of
A.natural selection.
B.genetic drift.
C.founder effect.
D.industrial melanism.
Which of the following is most likely an example of a founder effect event?
A.A random small group of a bird population migrates to an island and then returns to breed.
B.A random large group of a bird population migrates to an island and then returns to breed.
C.A selected small group of a bird population migrates to an island and then returns to breed.
D.A random small group of a bird population migrates to an island and does not return to breed.
E.A random large group of a bird population migrates to an island and does not return to breed.
Microevolution is not influenced by which of the following?
A.mutation
B.random mating
C.gene flow
D.natural selection
E.genetic drift
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