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1Most chemicals that cause cancer also induce mutations.
A)True
B)False



2Bacteria that are unable to synthesize tryptophan are referred to as ________.
A)prototrophs
B)auxotrophic for tryptophan
C)auxotrophic for histidine



3Which of the following is a false statement concerning the Ames test?
A)The test is expensive.
B)The test does not use animals.
C)The test is relatively fast.



4In the Ames test, bacteria can mutate, even if they cannot grow.
A)True
B)False



5In the Ames test, the more mutagenic the test substance, the greater the number of revertant colonies the test plate should show.
A)True
B)False







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