Microbiology Exam Practice Questions with Correct Answers

Microbiology Exam Practice Questions with Correct Answers Which of the following tests is MOST useful in determining the presence of AIDS antibodies? a. agglutination b. complement fixation c. neutralization d. indirect ELISA e. direct fluorescent-antibody - Answer-d. indirect ELISA Which of the following is NOT an advantage of live attenuated vaccine agents? a. They elicit lifelong immunity b. They stimulate by cell-mediated and humoral immune responses c. They never revert to virulent forms d. They require few or no booster immunizations e. The immune response generated by the vaccine closely mimics a real infection. - Answer-c. they never revert to virulent forms In order to view Treponema pallidum, the causative agent of syphilis, under the microscope, you can tag the specimen with an antibody-flourescein dye complex and look under a microscope that projects UV light onto the specimen. What test are you using? a. Western blot test b. Fluorescence antibody (FA) test c. Kirby-Bauer disc diffusion test d. ELISA test e. Agglutination test - Answer-b. fluorescence antibody (FA) test