Clear patches in cell cultures that indicate sites of virus infection are called a. plaques. b. pocks.c. colonies d. prions.

A virus with an envelope is most likely  A. an animal virus  B. better able to hide from the hosts immune system due to the envelope  C. found only in plants  D. A and B

The enzyme hydrolase is critical for which of the stages to occur as a consequence of a bacteriophage T4 infection cycle.  a. entry and release  b. entry  c. attachment  d. assembly  e. synthesis

The term active transmission refers to: a. A person who catches a disease from a bug bite  b. A person who catches a disease from contaminated food c. A person who catches a disease from a contaminated object d. A person who coughs in public and passes the disease to those around them

Select a drug or drugs that can prevent a viral nucleic acid from beingreplicated.a. retrovir b. acyclovir c. saquinavir d. both a and b

Ebola virus is a(n)___virus classified in the___family.a. enveloped RNA, rhabdovirusb. naked DNA, adenovirus c. enveloped DNA, herpesvirus.d. enveloped RNA, filovirus.

10. All human viruses must have the ability to 1. have only its nucleic acid enter the host cell 2. kill or not kill the host cell 3. multiply in the absence of living cells 4. extracellular uncoat 5. have their nucleic acid replicate in the host cell A. 1,2 B. 2,5 C. 3,4 D. 4,5 E. 1,4 11. Which of the following involves pseudopods? a. adherence of phagocytes to pathogens b. chemotaxis c. opsonization d. extracellular killing e. a & b 12. Antimicrobials may a. produce allergic reactions b. produce toxic effects not only to the microbe but to the host c. kill bacteria in our bodies d. all the above 13. The normal range for IgG is between 700-1600 mg/dL, and the normal range for IgM is between 40 - 250 mg/dL. Your patient has a chronic infection, and you measured his IgG levels to be 500 mg/dL, and his IgM levels to be 40 mg/dl. Based off this information, which of the following caused your patient's low IgG concentration? a. the presence of healthy macrophages b. dysfunctional T helper…

which of the following antibiotics is not bactericidal? a. vancomycin b.polymyxin b c. penicillin d. cephalosporins e. tetracycline

Lassa virus is endemic in which of the following countries? a. Nigeria b. Nicaragua c. India d. Liberia e. Peru f. Japan g. Sierra Leone

2) Fowl adenovirus is a serious disease within the avipoxvirus genus, that has two forms: cutaneous and wet. Select one: a. True b. Fase