1. Which of the following statements about antibiotic resistance is CORRECT? a.R

Question

1. Which of the following statements about antibiotic resistance is CORRECT?

a.Resistance is often mediated by F plasmids b.Resistant cells are usually the majority of a bacterial population c. Resistant cells grow much more efficiently than sensitive cells d. Resistance can occur through DNA mutations e.Antibiotic resistance always requires the presence of beta-lactamase

2. Members of the genus _____ are commonly associated with foodborne infections caused by Shigella and Salmonella

a.Mus musculus b. Marmota monax c. Triatoma d. Musca e. Ixodes

3. Examples of fomites include money in a cash register, toys in a daycare, and _____

a. portals of entry, such as the mouth b. shared drinking cups c. portals of exit, such as the mouth d. a sneeze e. a cough

4. Toxoplasma infections are usually transmitted by

a.waterborne transmission b. foodborne transmission c. Gram-negative bacteria d.Gram-positive bacteria

5. The rabies virus can infect dogs, cats, horses, as well as other mammalian species, including humans. Which of the following is true concerning rabies?

a. If you step on a nail, get a booster vaccine b. Elephants and rats may also carry rabies c. Rabies is an example of an opportunistic normal pathogen. d. Zoonoses are never fatal. e. The last two statements are correct.

6. Dendritic cells are used for

a.immunity. b. destroying pathogens by phagocytosis c. nonspecific defense. d. A and C e. A, B, and C

Explanation / Answer

Answer:

1)a.Resistance is often mediated by F plasmids

2)Mus musculus

3)a. portals of entry, such as the mouth

4)b. foodborne transmission

5)b. Elephants and rats may also carry rabies

6)e. A, B, and C

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