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| 1 | |
Evolutionary changes that create new species and groups of species are most accurately referred to as |
| | A) | natural selection. |
| | B) | macroevolution. |
| | C) | microevolution. |
| | D) | horizontal gene transfer. |
| | E) | vertical descent. |
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| 2 | |
The inability for two morphologically similar species to interbreed is due to |
| | A) | genetic drift. |
| | B) | endosymbiosis. |
| | C) | reproductive isolation. |
| | D) | molecular features. |
| | E) | species concepts. |
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| 3 | |
The concept that the tempo of evolution is sporadic is known as ________________, while the concept that the tempo of evolution is continuous is known as ______________. |
| | A) | punctuated equilibrium; gradualism |
| | B) | Darwinism; neo-Darwinism |
| | C) | revolutionism; conservatism |
| | D) | gradualism; Darwinism |
| | E) | conservatism; punctuated equilibrium |
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| 4 | |
True or False: The comparison of the development of different organisms as a means to study evolutionary relationships between organisms is a field referred to as "evo-devo". |
| | A) | True |
| | B) | False |
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| 5 | |
Which of the following does not lead to sympatric speciation? |
| | A) | Polyploidy |
| | B) | Sexual selection |
| | C) | Adaptation to local environments |
| | D) | Alloploidy |
| | E) | All of the choices may lead to sympatric speciation |
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| 6 | |
Which of the following most accurately defines a lineage? |
| | A) | A group of individuals capable of successful interbreeding resulting in viable offspring |
| | B) | A unique combination of characteristics shared by members of a species |
| | C) | The genetic relationship between an individual and its ancestors |
| | D) | A group of individuals capable of successful interbreeding resulting in viable offspring and the genetic relationship between an individual and its ancestors A group of individuals capable of successful interbreeding resulting in viable offspring, |
| | E) | A unique combination of characteristics shared by members of a species, and The genetic relationship between an individual and its ancestors |
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| 7 | |
Which one of the following is not an example of a postzygotic reproductive isolating mechanism? |
| | A) | Fertilization of one species by another |
| | B) | Original generation fertile while successive generations become increasingly inviable |
| | C) | Hybrid offspring of interspecies are inviable |
| | D) | Gametes fail to unite |
| | E) | All of the choices are examples of postzygotic reproductive isolation mechanisms. |
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| 8 | |
True or False: Reproductive isolating mechanisms occur due to genetic changes caused by species adaptation to its environment. |
| | A) | True |
| | B) | False |
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| 9 | |
Which of the following reproductive isolating mechanisms is particularly important to flowering plants? |
| | A) | Gametic isolation |
| | B) | Hybrid inviability |
| | C) | Hybrid stability |
| | D) | Temporal isolation |
| | E) | Habitat isolation |
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| 10 | |
Which of the following statements about allopatric speciation is incorrect?Allopatric speciation |
| | A) | can occur due to the "founder effect." |
| | B) | is believed to be the most common method for cladogenesis to occur. |
| | C) | can occur due to slow geological events that produce large geographical barriers. |
| | D) | may result from adaptive radiation |
| | E) | All of the statements about allopatric speciation are correct. |
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| 11 | |
True or False: A single ancestral species can evolve into a wide array of descendant species through a process known as adaptive radiation. |
| | A) | True |
| | B) | False |
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| 12 | |
True or False: Incomplete geographic separation may result in a hybridization zone. |
| | A) | True |
| | B) | False |
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| 13 | |
Which of the following is not an example of sympatric speciation? |
| | A) | Nondisjunction produces polyploid offspring that can no longer successfully mate with the original species. |
| | B) | Neighboring populations of a single species interbreed only in hybrid zones, limiting the gene flow to the point of speciation. |
| | C) | Two continuous populations differ in an allele which leads to noncompatible breeding seasons, producing different species over time. |
| | D) | Interspecies breeding between already polyploid species |
| | E) | All of the choices are examples of sympatric speciation. |
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| 14 | |
Which of the following events would be likely to cause a rapid (on an evolutionary time scale) change in a gene pool? |
| | A) | Introduction of a new predator into a population's geographic territory |
| | B) | Alloploidy or other change in chromosome number |
| | C) | Migration of a population to a new and different environment |
| | D) | Genetic mutations that lead to different phenotypic characteristics |
| | E) | All of the events would be likely to cause rapid changes in a gene pool. |
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| 15 | |
A developing webbed bird foot would have |
| | A) | BMP and gremlin in all areas of the developing limb. |
| | B) | BMP in the entire limb, but gremlin only in the interdigit regions. |
| | C) | gremlin in the entire limb, but BMP only in the interdigit regions. |
| | D) | gremlin in the entire limb, and BMP in all areas except the interdigit regions. |
| | E) | BMP in the entire limb, and gremlin in all areas except the interdigit regions. |
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| 16 | |
True or False: Podos determined that Galapagos finches that evolved large beaks because of their food source are prone to reproductive isolation due to their inability to reproduce effective mating songs. |
| | A) | True |
| | B) | False |
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| 17 | |
The pattern whereby different parts of an animal's body grow at different rates with respect to each other is most accurately referred to as |
| | A) | proportionality. |
| | B) | geometric growth. |
| | C) | isometric growth. |
| | D) | heterochrony. |
| | E) | None of the choices accurately describe the pattern whereby different parts of an animal's body grow at different rates with respect to each other. |
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| 18 | |
Which of the following is an example of spatial expression of genes? |
| | A) | Mature salamanders with gills |
| | B) | Webbed versus nonwebbed feet in birds |
| | C) | Galapogos finches with ineffective mating songs |
| | D) | Eyeless Drosophila |
| | E) | Pea aphids feeding on alafalfa instead of red clover |
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| 19 | |
Eye development is under control of a master control gene called |
| | A) | Hox. |
| | B) | Pax6. |
| | C) | BMP. |
| | D) | gremlin. |
| | E) | lacZ. |
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| 20 | |
True or False: The cascade of eye development in Drosophila involves the action of approximately 2,500 different genes. |
| | A) | True |
| | B) | False |
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