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Multiple Choice Feedback Quiz
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1

The flippers of penguins and dolphins are
A)homologous structures.
B)analogous structures.
C)evidence of the molecular clock.
D)evidence that both are closely related on the molecular family tree.
2

The forelimbs of mammals are an example of
A)vestigial organs.
B)analogous structures.
C)homologous structures.
D)all of the above
3

Which one of the following would cause the Hardy-Weinberg principle to be inaccurate?
A)The size of the population is very large.
B)Individuals mate with one another at random.
C)Natural selection is present.
D)There is no source of new copies of alleles from outside the population.
4

The lack of allele variation in the cheetah population is an example of
A)mutations.
B)founder effect.
C)artificial selection.
D)bottleneck effect.
5

Which one of the following populations would most quickly lead to two groups with few shared traits?
A)a population with disruptive selection
B)a population with directional selection
C)a population with stabilizing selection
D)a population with no selection
6

Even though sickle-cell anemia is usually fatal to homozygous individuals, the disease persists because
A)gene therapy has alleviated the condition.
B)the disease is carried on a dominant allele.
C)individuals with one allele for sickle-cell anemia are resistant to malaria.
D)a combination of all of the above
7

The change in coloration of the peppered moth is an example of
A)a population with disruptive selection.
B)a population with directional selection.
C)a population with stabilizing selection.
D)a population with no selection.
8

An example of adaptive radiation would be
A)the peppered moth.
B)the cheetah.
C)domestic dogs.
D)Darwin's finches.
9

Prezygotic isolating mechanisms include all of the following except
A)hybrid sterility
B)courtship rituals
C)physical separation
D)seasonal reproduction
10

Thomas Malthus proposed the concept of natural selection prior to Darwin's voyage around the world.
A)true
B)false
11

You could use carbon-14 to date fossils up to 1.3 billion years old.
A)true
B)false
12

Radioactive dating of fossils gives a more reliable estimate of their age than using relative dating involving positions and rates of erosion.
A)true
B)false
13

The presence of gill slits and a tail in the early stages of development of an embryo indicates its future as a fish.
A)true
B)false
14

Evolutionary changes within a species are referred to as microevolution.
A)true
B)false
15

Mutations tend to have little effect on the allele frequency in a population.
A)true
B)false
16

The effects of genetic drift are most apparent in small populations.
A)true
B)false
17

Inbreeding increases the proportion of homozygous individuals in a population.
A)true
B)false
18

The direction of evolution is determined by the environment.
A)true
B)false
19

Fossil evidence appears to support the hypothesis of gradualism over the hypothesis of punctuated equilibrium.
A)true
B)false





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