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Bio07_TR_U05_CH16.QXD
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Name______________________________
Chapter 16
Class __________________
Date ______________
Evolution of
and
Populations
Populations
Vocabulary Review
True or False
false.
If the statement is true, write true. If it is false, write
________________
1. All of the genes in a population make up the
relative frequency of the population.
________________
2. When two related species live in the same
area but mate during different seasons, they
are separated by directional selection.
________________
3. Traits controlled by two or more genes are
polygenic traits.
________________
4. Reproductive isolation occurs when members of two populations cannot interbreed
and produce fertile offspring.
________________
5. The separation of two populations by barriers such as rivers or mountains results in
temporal isolation.
________________
6. The Hardy-Weinberg principle states that
allele frequency in a population will remain
constant unless one or more factors cause
those frequencies to change.
________________
7. When two populations can breed but do not
because of differences in mating rituals or
other similar behaviors, behavioral isolation
exists.
________________
8. Genetic drift is the formation of new species.
________________
9. Geographic isolation is a random change in
the allele frequencies of a small population.
________________ 10. Genetic equilibrium occurs when the allele
frequencies in a population remain constant.
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