Which of the following statements concerning cancer and mutations is correct?

A. Cancer can only occur with a mutation in a
somatic cell.
B. Cancer can only occur with a mutation in a
germ cell.
C. Usually multiple mutations are required in
different genes to cause cancer.
D. Usually a single mutation is all that is
required to cause cancer.
E. None of the answer options is correct.


C

Biology & Microbiology

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A gradual rise in numbers during an epidemic indicates a common source epidemic

Indicate whether this statement is true or false.

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The best method for culturing Chlamydia is

A. a minimal, defined selective medium. B. to incubate the medium at slighty lower than body temperature. C. enrichment through several rounds of blood culture. D. eukaryotic cell culture.

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A new antibiotic has been developed.  It acts as a noncompetitive inhibitor. How will this antibiotic affect delta G for the enzyme-catalyzed reaction?

A. Delta G will increase. B. Delta G will be unaffected. C. Delta G will decrease.

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