Chloramphenicol binds to the 50S portion of a ribosome, which will interfere with:
a. Transcription in prokaryotic cells
b. Transcription in eukaryotic cells
c. Translation in prokaryotic cells
d. Translation in eukaryotic cells
e. DNA synthesis

Use the following information to answer questions 6 and 7. The data were obtained from a use-dilution test comparing four disinfectants against Salmonella Choleraesuis.

G = growth, NG = no growth

Which disinfectant is the most effective?

Use the following information to answer questions 6 and 7. The data were obtained from a use-dilution test comparing four disinfectants against Salmonella Choleraesuis.

G = growth, NG = no growth

Which disinfectant(s) is (are) bactericidal?

a. A,B,C, and D

b. A,C, and D

c. A only

d. B only

e. None of the above

All of the following are modes of action of antiviral drugs except:

a. Inhibition of protein synthesis at 70S ribosomes

b. Inhibition of DNA synthesis

c. Inhibition of RNA synthesis

d. Inhibition of uncoating

e. All of the above are modes of action of antiviral drugs

A drug that intercalates into DNA has the following effects. Which one leads to the others?

a. It disrupts transcription

b. It disrupts translation

c. It interferes with DNA replication

d. It causes mutations

e. It alters proteins

Use the following choices to answer the following question:

a. Candidiasis

b. Bacterial vaginosis

c. Genital herpes

d. Lymphogranuloma venereum

e. Trichomoniasis

Difficult to treat with chemotherapy.

Which of the following chemicals is active against bacterial endospores?

a. Copper ions

b. Ethylene oxide

c. Ethanol

d. Triclosan

How does a chemostat maintain a constant population size?

Which of the following terms best describes the disinfecting of cafeteria plates?

a. Pasteurization

b. Antisepsis

c. Sterilization

d. Sanitization