1 Which of the following is not a piece of molecular evidence supporting the endosymbiotic theory? A Ribosomes of some organelles are like that of those found in bacteria
B Some organelles divide by fission just like bacteria
C Mitochondrial and chloroplast DNA is similar to bacterial DNA
D The mitochondria and chloroplasts are much different in structure than bacteria
2 If a single mutation turns off the growth of some pairs of legs within an organism, what’s most likely affected?
A A deleted gene
B A Hox gene
C A substituted gene
D A duplicated gene
3 Which of the following is true regarding extinction?
A Single events or several causes working together to produce extinction in a short period is referred to as mass extinction
B If the rate of speciation in a clade is equal to or less than the rate of extinction, the clade will survive
C Extinction that occurs in a relatively short period of time is referred to as background extinction
D The rate of extinction is steady from clade to clade as are the number of species contained within a clade
4 Which of the following accurately describes a characteristic of fungi?
A Parasitic fungi are responsible for helpful benefits to plant
B Mutualistic fungi form symbiotic relationships with plants to form mycorrhizae
C Parasitic fungi often form symbiotic relationships with algae to form lichens
D Mutualistic fungi are responsible for producing some human diseases
5 Unlike a lytic infection, a lysogenic infection
A requires a virus to inserts its nucleic acid into a host cell’s DNA
B involves a virus and its nucleic acid
C involves a host
D damages the host cell and causes it to burst
7 Molecular clocks
A take advantage of the fact that all mutations affect the fitness of an organism
B take advantage of the fact that only neutral mutations do not happen at a steady rate
C take advantage of known mutation rates to estimate how long ago organisms shared a common ancestor
D take advantage of the fact that all mutations happen at a steady rate
8 Classification of living things takes into consideration all of the following except
A presence of a nucleus
B mode of nutrition
C presence of cell membranes
D number of cells
9 Sexual reproduction
A maintained the same gene combinations over time
B increased genetic variation
C helped maintain a slow rate of evolutionary change
D limited the material in which natural selection can act upon
10 Which of the following statements accurately describes the process of dating Earth’s history?
A Scientists use index fossils to determine the specific years of age of a new fossil
B Scientists use radiometric dating to determine the relative age of a new fossil
C Scientists use radioactive isotopes to determine the absolute age of a new fossil
D Scientists use relative dating to determine the absolute age of a new fossil
11 Which one of the following diseases is caused by a virus? A Strep throat
B Tetanus
C Hepatitis B
D Tuberculosis
12 Limb bones within unrelated animals that have the same basic structures are considered A embryological
B vestigial structures
C analogous structures
D homologous structures
13 Which of the following best describes a cladogram?
A The more closely related lineages are the farther the distance between them on a cladogram
B The goal of a cladogram is to show overall similarities and differences of species
C The goal of a cladogram is to show relationships and evolutionary descent between species
D A node represents the first point that two groups shared a common ancestor
15 The Silurian period occurred
A during the Hadean eon
B after the Permian era
C during the Mesozoic era
D before the Neogene period
16 The continents began to drift apart by the end of the _______ period A Cretaceous
B Neogene
C Permian
D Cambrian
17 Which of the following is not a source of genetic variation
A Mutations
B Sexual reproduction
C Asexual reproduction
D Lateral gene transfer
18 When two species exhibit different behaviors but live in the same area, what can result?
A Behavioral isolation
B Temporal isolation
C Geographic isolation
D Founder effect
19 Suppose that species A evolves and species B evolves in response to the changes in Specie A Species A then changes in response to the changes in Species B This is an example of
A extinction
B convergent evolution
C adaptive radiation
D coevolution
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