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A mechanism for Natural Selection proposed by Darwin is that a population must contain...
A. variations
B. identical organisms
C. large gene pools
D. isolation |
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Darwin sailed around the world on the ship named:
A. HMS Minnow
B. HMS Beagle
C. Queen Elizabeth II
D. HMS Arizona |
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One of the most convincing pieces of evidence Darwin used to defend his theory was:
A. DNA evidence
B. embryology comparison
C. fossils
D. genetic similarities |
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The flying squirrel of NA closely resembles the flying phalanger of Australia. These close resemblances, even though geographically and genetically they are quite different, can be best explained by:
A. convergent evolution
B. divergent evolution
C. coevolution
D. spontaneous generation |
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Hawaiian honey creepers are a group of birds with similar body shape and size. Each species varies greatly in color and beak shape. The evolution from a common ancestor to a variety of species is an example of:
A. divergent evolution
B. convergent evolution
C. coevolution
D. stabilizing evolution |
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If there is a change in allele frequency of a gene pool due to chance, it is referred to as:
A. mutation
B. genetic drift
C. gene flow
D. nonrandom mating
E. natural selection |
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Structures that are anatomically similar because they are inherited from a recent common ancestor are called:
A. vestigial structures
B. analogous structures
C. transitional structures
D. directional structures
E. homologous structures |
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A biologist is studying structures that serve the same function but are not considered similar, nor do they share a recent common ancestor. Which of the following is it?
A. vestigial structures
B. analogous structures
C. transitional structures
D. directional structures
E. homologous structures |
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Structures which are fully developed in one group of organism but reduced or possibly nonfunctional in a similar group are referred to as:
A. vestigial structures
B. analogous structures
C. transitional structures
D. directional structures
E. homologous structures |
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When only a few individuals survive unfavorable times, thereby losing a majority of genotypes in the next generation, it is referred to as:
A. artificial selection
B. the bottleneck effect
C. the founder effect
D. the transition effect
E. coevolution |
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The organisms, examined by Darwin on the Galapagos Islands, which were most important in his development of the theory of natural selection, were:
A. rabbits and hares
B. plants
C. finches
D. fish
E. monkeys and armadillos |
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If the Hardy-Weinberg equilibrium is met, what is the net effect?
A. evolution leading to a population better adapter to an unchanging environment
B. no evolution because the alleles in the population remain the same
C. very slow and continuous evolution no increased adaptation
D. evolution leading to a population better adapted to a changing enviroment
E. very rapid and continuous evolution with no increased adaptation
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B. no evolution because the alleles in the population remain the same |
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The equation p2+2pq+q2=1.0 describes:
A. the process of evolution
B. the size of a population
C. the rate of speciation of species p and q
D. the genotype and allele frequency of a population
E. the phenotypic frequency of a population |
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D. the genotype and allele frequency of a population |
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In the Hardy-Weinberg equation, q2 stands for:
A. the frequency of dominant alleles
B. the frequency of recessive alleles
C. the frequency of homozygous recessive individuals
D. the frequency of homozygous dominant individuals
E. the frequency of heterozygous individuals |
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C. the frequency of homozygous dominant individuals |
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The type of selection where two or more extreme phenotypes are favored is referred to as:
A. disruptive selection
B. directional selection
C. genetic drift selection
D. stabilizing selection
E. adaptive selection |
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The _______ is the total alleles of all the genes in all the members of a population.
A. genetic drift
B. gene flow
C. gene pool
D. gene migration
E. gene selection |
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The Amish of Lancaster, PA, have a high frequency of an unusual form of dwarfism than the population at large. This is probably an example of:
A. artificial selection
B. the bottleneck effect
C. the founder effect
D. the transition effect
E. coevolution |
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Natural selection can best be defined as the:
A. survival of the biggest and strongest organisms in a population
B. elimination of the smallest organisms
C. survival and reproduction of the organisms that occupy the largest area
D. survival and reproduction of the organisms that are genetically best adapted to area |
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D. survival and reproduction of the organisms that are genetically best adapted to area |
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One of the most important observations made by Darwin on his trip around the world was:
A. species change from place to place throughout time
B. species have remained constant over time in some places but not in others
C. species have remained constant overtime
D. species remain constant from place to place
E. DNA from all species is very similar |
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A. species change from place to place throughout time |
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Which of the following statements about fossils is not true?
A. they are mostly from the hard parts of organisms
B. they are found in sedimentary rock
C. soft parts are often found along with the hard parts
D. in general, the older a fossil is, the deeper its buried
E. the fossil record indicates that life has progressed from simple to more complex |
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C. soft parts are often found along with the hard parts |
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If you were a biologist studyng the type of natural selection where an extreme phenotype is favored and the distribution curve shifts toward that phenotype, you would be studying which of the following?
A. disruptive selection
B. directional selection
C. genetic drift selection
D. stabilizing selection |
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Almost all living organisms have the same triplet DNA code and many similar proteins. This is an example of evolution based on:
A. the fossil record
B. biogeography
C. comparative anatomy
D. comparitive embryology
E. comparitive biochemistry |
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E. comparitive biochemistry |
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Which type of natural selection occurs when an intermediate phenotype is favored?
A. disruptive selection
B. directional selection
C. genetic drift selection
D. stabilizing selection
E. adaptive selection |
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The model of speciation that states evolution has long periods of no change followed by brief periods of rapid change is referred to as:
A. the sympatric model
B. the allopatric model
C. the punctuated equilibrium model
D. the microevolution model
E. the gradualistic model |
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C. the punctuated equilibrium model |
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Which of the following is an example of adaptive radiation?
A. the evolution of the whale
B. the breeding of mice
C. different breeding patterns in two species of birds
D. the evolution of different species of Hawaiian honey creepers
E. the cultivation of different types of corn |
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D. the evolution of different species of Hawaiian honey creepers |
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If a biologist was studying the concept of one species splitting into two or more new species, that biologist would be studying which of the following?
A. polyploidy
B. speciation
C. prezygotic isolation
D. hybridization
E. alloploidy |
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A biologist is studying how courtship patterns of different species affect their inability to interbreed. This biologist would be studying which of the following?
A. habitat isolation
B. mechanical isolation
C. gamete isolation
D. behavioral isolation
E. temporal isolation |
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