Biology (Mader), 10th Edition

Chapter 17: Speciation and Macroevolution

Post-Test

1
Which of the following correctly describes a species?
A)Members of a species can interbreed.
B)Members of a species have a shared gene pool.
C)Members are unable to successfully breed with members of other species.
D)All of these
2
The process of evolution occurs in _______.
A)families
B)species
C)populations
D)individuals
3
Which of the following would best lead to species formation?
A)Divergence
B)Isolation
C)Evolution
D)All of these
4
Mules are sterile hybrids produced from mating between _______.
A)a female horse and male donkey
B)a male horse and a female mule
C)a male horse and a female donkey
D)None of these
5
Which of the following statements is incorrect?
A)Animals are more likely to show polyploidy than plants.
B)Plants are able to have extra genes with no apparent physiological harm.
C)Most hybrids between plant species are sterile.
D)Polyploidy plants may not be able to reproduce sexually, but asexual reproduction may allow new chromosome combinations to survive.
6
A mating season specific to each species is a form of _________ isolation.
A)postzygotic
B)prezygotic
C)zygote mortality
7
Characteristics of animal genitalia or plant floral structures which make mating with other species impossible are forms of _____ isolation.
A)habitat
B)gamete
C)temporal
D)mechanical
8
The use of pheromones is a form of _____ isolation.
A)behavioral
B)mechanical
C)habitat
D)temporal
9
The ability of a plant's stigma to control which pollen grains can successfully complete pollination is a type of _____ isolation mechanism.
A)habitat
B)mechanical
C)gamete
D)temporal
10
______________ occurs when a diploid plant produces diploid gametes due to nondisjunction during meiosis.
A)Alloploidy
B)Diploids
C)Autoploidy
D)None of these
11
Polyploid plants can successfully reproduce (produce fertile offspring) ________.
A)only with diploid plants
B)only with other like polyploid plants
C)with any plants
12
Sympatric speciation can occur due to _____.
A)geographic isolation
B)mechanical isolation
C)hybridization
D)All of these
13
Which of the following is a postzygotic isolating mechanism?
A)Hybrid sterility
B)Habitat isolation
C)Mechanical isolation
D)Temporal isolation
14
All of these are factors necessary for allopatric speciation EXCEPT:
A)Individuals of the population do not interbreed, even if placed back into the original area.
B)Gene flow occurring between the two populations
C)An actual physical barrier separates populations or subpopulations of a species
D)None of these
15
Which of these would be stated as a postzygotic isolation mechanism?
A)Behavioral isolation
B)Hybrid sterility
C)Gametic mortality
D)Temporal isolation
16
A mating season specific to each species is a form of ________ isolation.
A)mechanical
B)hybrid sterility
C)postzygotic
D)prezygotic
17
The rejection of finch suitors with the wrong type of beak is a _____ type of isolating mechanism.
A)postzygotic
B)mechanical
C)temporal
D)behavioral
18
Mutations in the _____ lead to the failure of eye development in humans and mice.
A)Hox gene
B)Tbx5 gene
C)Pax6 gene
D)HbS gene
19
Which of these classification levels would NOT support macroevolutionary development?
A)Population
B)Ecosystem
C)Community
20
The fossil record of the _____ is complete enough for us to trace the history of the organism.
A)human
B)dog
C)horse
D)snake
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