Biology Chapter 17 Review Question Preview (ID: 24797)


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If there are 45 alleles for brown eyes in a population of 215, what is the allele frequency for brown eyes?
a) 21%
b) 4.7%
c) 23%
d) 6%

True or False: Allele frequency must stay the same for evolution to occur.
a) False
b) True
c)
d)

Which of the following is not a source of genetic variation?
a) natural selection
b) mutations
c) genetic recombination during sexual reproduction
d) lateral gene transfer

Antibiotics are used to treat
a) bacteria.
b) viruses.
c) influenza.
d) the common cold.

The flu is able to evolve due to
a) lateral gene transfer.
b) mutations.
c) artificial selection.
d) genetic drift.

Random change in allele frquency.
a) genetic drift
b) mutation
c) lateral gene transfer
d) natural selection

Which of the following could trigger a bottleneck effect?
a) All are possible answers
b) Disease
c) Natural disaster
d) War

An example of speciation caused by timing differences in reproduction.
a) Temporal Isolation
b) Geographic Isolation
c) Behavioral Isolation
d) Genetic Drift

From where is it believed the finches on the Galapagos Islands came from?
a) South America
b) Africa
c) Australia
d) North America

True or False: A population that is in genetic equilibrium is evolving.
a) False
b) True
c)
d)

New species will form when they
a) no longer interbreed.
b) gain mutations.
c) evolve.
d) go through genetic drift.

True or False: Mutations are very common.
a) True
b) False
c)
d)

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