Which statement about clinical identification tests is true?
A. Microarray tests are based on electrophoresis methodology.
B. Not all diseases are identified by clinical tests.
C. Biochemical tests are quicker than genetic analysis tests.
D. Serological tests are always based on identifying antibodies in the patient.
Answer: B
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Despite the aggressive defense of the cardiovascular system by the immune system, some microbes can invade and establish an infection in the blood. From the following list of microbes and their virulence factors, identify the mismatch.
A. Borrelia burgdorferi changes its surface antigens to avoid immune recognition. B. Coxiella burnetii produces an endospore-like structure. C. Trypanosoma cruzi cloaks itself in host proteins to avoid immune recognition. D. Bacillus anthracis produces antioxidants to combat lysosomes.
A group of patients was seen on an emergency basis complaining of abdominal craps and watery diarrhea within 5 hours of attending a picnic in which ham, potato salad, and custard-filled pastries were on the menu. Which of the following is the likely cause of this disease?
A. Attachment and disruption of intestinal lining due to parasitic infection B. Bacterial colonization and toxin production C. Bacterial adherence and invasion D. Performed bacterial toxin E. Replication of virus that prevents reabsorption of water
When a population evolves predator defenses, this reduces selective pressure and can lead to diversification into new species. This is called:
A. Interference competition B. Ecological release C. Ecological character displacement D. Escape-and-radiate coevolution
A specific gene can be found in several possible places on a given chromosome, it depends on the individual
a. true b. false