Indicate the effect of this condition of the Hardy-Weinbergprinciple on genotype and allele frequencies: assortativemating
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) withinthe Amish population in Pennsylvania is considered an example offounder effect. This is because the frequency of polydactylismamong the Amish in Pennsylvania is identical to its frequency amongthe 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 therecessive allele is rapidly increasing. What is the most likelyexplanation for this response? The recessive allele is responsiblefor susceptibility of the bacteria to the antibiotic.
a.The dominant allele is responsible for susceptibility of thebacteria to the antibiotic.
b.The recessive allele is responsible for resistance of thebacteria to the antibiotic.
c.The population is experiencing gene flow.
d.The population is experiencing disruptive selection.
Biotic environments that influence natural selection includes allbut 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 eversick.
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 toreproduce and generate the new population. If the survivors of theoriginal population survived by chance, then this event is anexample of
A.natural selection.
B.genetic drift.
C.founder effect.
D.industrial melanism.
Which of the following is most likely an example of a foundereffect event?
A.A random small group of a bird population migrates to an islandand then returns to breed.
B.A random large group of a bird population migrates to an islandand then returns to breed.
C.A selected small group of a bird population migrates to an islandand then returns to breed.
D.A random small group of a bird population migrates to an islandand does not return to breed.
E.A random large group of a bird population migrates to an islandand 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
