A predisposing factor in pseudomembranous colitis is:
A. diet high in fatty products.
B. neonatal age.
C. clindamycin treatment.
D. older age (older than age 60 years).
E. diet high in dairy products.
Ans: C. clindamycin treatment.
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How is it that people can donate blood plasma twice per week?
A. Plasma only contains fluid and dissolved substances such as proteins that can be rapidly replaced. B. Plasma contains platelets which can be replaced quickly. C. Plasma contains red blood cells which can be replaced quickly. D. Plasma contains only water and can be rapidly replaced. E. Plasma is regenerated from the blood cells injected back into the donor.
How much of the total body water content is in the intracellular compartment?
What will be an ideal response?
Plant cell walls consists mainly of ________.
A. chitin B. peptidoglycan C. cellulose D. chlorophyll
Which of the following statements about the lagging strand is false?
A) It builds in the opposite direction of the helix unwinding. B) It is where one would find Okazaki fragments. C) It synthesizes many RNA primers. D) It uses only one molecule of DNA polymerase I. E) It is a discontinuous process.