A physician orders an antistreptolysin O (ASO) titer test to check for rheumatic fever. A patient serum sample is exposed to known suspensions of streptolysin and then allowed to incubate with RBCs. If the patient does have rheumatic fever, what will happen?
A.) Not enough information is provided to speculate.
B.) The red blood cells will lyse.
C.) The red blood cells will agglutinate only.
D.) The red blood cells will not lyse.
E.) The red blood cells will fluoresce.
D.) The red blood cells will not lyse.
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________ is a strict anaerobe with an optimum growth temperature of 105 °C that grows chemolithotrophically on H2 with S0 as an electron receptor or chemoorganotrophically on complex mixtures of organic compounds
A) Pyrodictium B) Pyrolobus C) Pyrobaculum D) Desulfurococcus
________ is used to monitor gene expression of a pathogen
A) Reverse transcription PCR B) Serology C) Antigen capture assay D) Qualitative PCR
Maquiladoras (manufacturing firms that import components for assembly and re-export) are found
A) in Mexico, clustered near the U.S. border. B) in Canada, clustered in and around Quebec. C) throughout Spanish-speaking communities of North America. D) throughout the world's periphery. E) in the Philippines, in export-processing zones.
Which of the following is an exocrine gland
that secretes mucus into semen?
a. prostate b. seminal vesicle c. bulbourethral d. epididymus e. vas deferens