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Pre-Test
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1
Which of the following statements about mutations is correct?
A)Mutations can only be passed from parent cell to daughter cell
B)By definition, all mutations exhibit positive consequences on the cell(s) that acquire them
C)Cancer cannot arise from uncorrected mutational events
D)All species have multiple systems in place to correct mutations that occur
E)All of these statements about mutations are correct.
2
Which one of the following is a commonly performed method of DNA repair?
A)Methyl-directed mismatch repair
B)Direct repair
C)nucleotide excision repair
D)(1) and (3) only
E)(1), (2) and (3)
3
Which one of the following statements about cancer is correct?
A)Cancers originate from a single cell that has lost regulatory control over cell division
B)The vast majority of human cancers are caused by exposure to carcinogens
C)A relatively small number of cancers can arise from an inherited predisposition
D)Initial mutations typically lead to benign tumors, while subsequent mutations typically lead to malignant tumors.
E)All of the choices are true regarding cancer.





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