AP Bio Ch 19 Quiz
Biological evolution refers to the cumulative changes that occur in a population over time. These changes are produced at the genetic level as organisms' genes mutate and/or recombine in different ways during reproduction and are passed on to future generations. Take up the quiz below and get to know more about the evolution process.
- 1.All the members of a single species that occupy a particular area at the same time are known as a
- A.
Subspecies.
- B.
Gene pool.
- C.
Population.
- D.
Group.
- E.
Sub-population.
- 2.Drug-resistance mutations occur in bacteria
- A.
Only when they are exposed to the drug to which they become resistant.
- B.
More often when they are exposed to the drug.
- C.
At any time, even when they are not exposed to the drug.
- D.
Only when they are exposed to radiation or other mutagens.
- 3.Which of the following is true about genetic drift?
- A.
It is more likely to occur in a large population than in a small population.
- B.
It may lead to an allele's becoming fixed in a population when its alternative allele is lost from the population.
- C.
It increases the number of heterozygotes in a population.
- D.
It increases the level of rare alleles in a population.
- 4.The bottleneck effect is thought to be responsible for the loss of variability and loss of fertility in the cheetah species.
- A.
True
- B.
False
- 5.Industrial melanism in peppered moths in England is an example of stabilizing selection.
- A.
True
- B.
Fasle
- 6.Gene mutation occurs at any time, without respect to the mutation's adaptive value or benefit to the organism.
- A.
True
- B.
False
- 7.The Hardy-Weinberg equilibrium is usually met in most populations in changing environments.
- A.
True
- B.
False
- 8.An example of the founder effect is seen in populations such as the Amish in Pennsylvania, in which unusual genes are found in large numbers in the isolated population.
- A.
True
- B.
False
Questions: 13 | Attempts: 13713 | Last updated: Dec 14, 2012
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