The major histocompatibility complex is important in a T-cell's ability to:
A. recognize specific parasites.
B. recognize specific bacteria.
C. recognize specific viruses.
D. recognize self from nonself.
D
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Of the following, which is the MOST common AIDS-associated opportunistic disease?
A) Pneumocystis carinii pneumonia B) cryptosporidiosis C) histoplasmosis D) cryptococcosis
Could two phenotypically normal parents have a child with cystic fibrosis?
a. Yes b. No
One reason it is important to understand community ecology is to
A) understand the life cycle of fish, such as cichlids. B) identify stomach microbes. C) aid in conservation of endangered species.
Managed care plans and _____ may require that the provider get authorization before a procedure is performed.
a) fee for service plans b) mediSoft c) preferred provider organizations (PPOs) d) dentisoft