Which of the following is NOT a source of genetic variation?
Natural selection acts directly on genes.
Random change in allele frequency.
Antibiotics can be used to treat viruses such as the flu.
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 bottleneck effect would occur as a result of which of the following?
Mutations are not that common.
Two types of birds will no longer interbreed with each other, thus producing separate species of birds. This is an example of
The formation of a new species.
When evolution is occuring the allele frequency will not change.
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