Acute glomerulonephritis is due to:
A) deposition of immune complexes in the kidney
B) destruction of glomeruli by Streptolysin O
C) formation of cross-reacting antibodies
D) invasion of the kidney by Streptococcus pyogenes
Ans: A) deposition of immune complexes in the kidney
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A) alkylating agents. B) nucleotide base analogs. C) chemicals reacting with DNA. D) None of the answers are correct.
The protection against a specific infectious disease that arises when all or nearly all of a population is vaccinated is termed
A) immune preparedness. B) mandatory vaccination. C) government-controlled health care. D) herd immunity.
____ is the most fatal genetic disorder in the United States
a. Cystic fibrosis b. Huntington’s disease c. Sickle cell anemia d. Anhidrotic dysplasia e. Color blindness
How does complement help in defense against bacterial invasion?
A) It promotes phagocytosis. B) It neutralizes bacterial toxins. C) It prevents bacteria from penetrating the skin. D) It fuses lysosomal granules to bacterial cell walls.