A mutated version of a virus that cannot disable the p53 gene can be used to
a. kill cancer cells.
b. repair defective genes.
c. turn off signal cascades.
d. turn off the host cell’s enzymatic activities.
Answer: a. kill cancer cells.
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The term N-terminus refers to the presence of a(n) ________ at one of the ends of a polypeptide.
A. oxygen atom B. carboxyl group C. amino group D. carbonyl group E. sulfate group
Which aspect of population genetics refers to chance fluctuations of allele frequencies resulting from sampling error and is more prominent in small, isolated populations?
A) founder effect B) mutation C) gene flow D) gene drift E) bottleneck effect
A vector is an organism that carries
A. mutations. B. toxins. C. spores. D. parasites.
Marion is going to the hospital for a triple bypass operation. She will have general anesthesia, intravenous catheter, surgical wounds, and a urinary catheter. Which health-care-associated infection is she at greatest risk for contracting?
A. surgical site B. urinary tract C. meningitis D. respiratory E. septicemia