Iatrogenic CJD has been transmitted by all of the following EXCEPT
A. grafts of dura mater.
B. human growth hormone.
C. corneal grafts.
D. liver transplants.
Answer: D
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True or false: Using bacteriophage to fight a bacterial infection in humans would be unwise because the bacteriophage will also infect the human cells
A. true B. false
In mammals, the filtrate leaves the blood by exiting from the
a. efferent arteriole. b. peritubular capillaries. c. renal artery. d. afferent arteriole. e. glomerulus.
Components of the first line of defense include all of the following, except
A. the tough cell sheet of the upper epidermis of the skin. B. the flushing action of tears and blinking. C. nasal hairs. D. the flushing action of urine. E. phagocytic white blood cells.
In the clotting process, fibrinogen is converted to fibrin Indicate whether the statement is true or false