Biology: Question Preview (ID: 5985)

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Which of the following is NOT a source of genetic variation?
a) mutations
b) genetic recombination during reproduction
c) temporal isolation
d) lateral gene transfer

Natural selection acts directly on genes.
a) True
b) False

Random change in allele frequency.
a) Gene pool
b) Evolution
c) Genetic drift
d) Adaptation

Antibiotics can be used to treat viruses such as the flu.
a) True
b) False

In a population the allele for widow's peak (w) is found 37 times out of a gene pool of 114. What is the frequency of this allele?
a) 32.5 percent
b) 30.8 percent
c) 25 percent
d) .325 percent

A bottleneck effect would occur as a result of which of the following?
a) Geographic isolation
b) Overpopulation
c) Disaster/disease
d) Reproductive isolation

Mutations are not that common.
a) True
b) False

Two types of birds will no longer interbreed with each other, thus producing separate species of birds. This is an example of
a) Temporal isolation
b) Geographic isolation
c) Reproductive isolation
d) Behavioral isolation

The formation of a new species.
a) Evolution
b) Speciation
c) Natural selection
d) Adaptation

When evolution is occuring the allele frequency will not change.
a) False
b) True

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