The human immunodeficiency virus (HIV) primarily destroys which cells?
a. B
b. neutrophils
c. T1
d. helper T and macrophages
e. suppressor T
D
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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.
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
Which hormone is found within the posterior pituitary?
a. ACTH b. TSH c. GH d. oxytocin e. prolactin
Mutations of trpL decrease the efficiency of transcriptional regulation by disrupting the formation of which stem-loop structure?
What will be an ideal response?