The human immunodeficiency virus (HIV) primarily destroys which cells?

a. B
b. neutrophils
c. T1
d. helper T and macrophages
e. suppressor T


D

Biology & Microbiology

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The organism that has been most commonly associated with human disease, particularly in patients who are immunocompromised, such as those infected with human immunodeficiency virus (HIV), is:

a. Rhodococcus. b. Gordonia. c. Tsukamurella. d. Streptomyces.

Biology & Microbiology

When would Koch's postulates be utilized?

A. to determine the cause of a new disease in a microbiology research lab B. to determine the cause of a patient's illness in a hospital microbiology lab C. to develop a new antibiotic in a pharmaceutical lab D. to formulate a vaccine against a new pathogen in a genetic engineering lab E. whenever the scientific method cannot be used to investigate a microbiological problem

Biology & Microbiology

Which hormone is found within the posterior pituitary?

a. ACTH b. TSH c. GH d. oxytocin e. prolactin

Biology & Microbiology

Mutations of trpL decrease the efficiency of transcriptional regulation by disrupting the formation of which stem-loop structure?

What will be an ideal response?

Biology & Microbiology