T cells can recognize tumor antigens from each of the following classes, EXCEPT for
A. antigens encoded by genes exclusively expressed by tumors (e.g., viral genes).
B. antigens encoded by variant forms of normal genes that are altered by mutation.
C. antigens that are expressed at lower than normal levels.
D. antigens normally expressed only at certain stages of development.
E. antigens that are overexpressed in particular tumors.
C
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The brain and spinal cord are part of the:
A) central nervous system. B) sensory nervous system. C) general nervous system. D) peripheral nervous system.
A medical term that means surgical repair of a vessel is ________.
Fill in the blank(s) with the appropriate word(s).
How have amphetamines both helped and hurt users?
What will be an ideal response?
Which of the following terms refers to ringing in the ear(s)?
a. dysphonia b. anosmia c. tinnitus d. vertigo