Which of the following is not required for T cell activation?
A) involvement of CD4 or CD8
B) bound antigen
C) MHC I or II
D) antibody
E) co-stimulatory proteins
Answer: D
Biology & Microbiology
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A. True B. False C. It is unknown at this time
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Upon antigenic stimulation, CD8+ T cells differentiate into helper T cells
a. True b. False
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Which of the following is not an autosomal recessive disorder?
A. sickle-cell disease B. Marfan syndrome C. cystic fibrosis D. Tay-Sachs disease E. All are autosomal recessive disorders.
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Most of the genes controlling development encode either signal molecules or ________
Fill in the blank(s) with correct word
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