Immature thymocytes (DN developing T cells) share what surface proteins with germ cells
and neural crest cells?
A: the C-Kit receptor
B: class II MHC molecules
C: B7
D: the cytoplasmic signaling peptides (ζ, ε, etc.) of the CD3
E: CD8 and CD4
and neural crest cells?
A: the C-Kit receptor
B: class II MHC molecules
C: B7
D: the cytoplasmic signaling peptides (ζ, ε, etc.) of the CD3
E: CD8 and CD4
举一反三
- Which of the following descriptions are correct? A: Class I MHC present endogenous antigens to CD4+ T cells B: Class I MHC present endogenous antigens to CD8+ T cells C: Class II MHC present exogenous antigens to CD4+ T cells D: Class II MHC present exogenous antigens to CD8+ T cells
- Myelination of peripheral nerves is accomplished by A: astrocytes B: oligodendrocytes C: Schwann cells D: neural crest cells E: asket cells
- Communication between cells is mediated by cell signaling molecules and ( ). A: Cell receptor B: Antibody C: Enzyme D: Electric signal
- The patient, male, 30 years old, was found HIV antibody positive in physical examination. Which kind of cells in his body is most significantly reduced A: CD4 + T cells B: CD8 + T cells C: B cells D: NK cells E: Monocytes
- (1分) 单选题<br/>0<br/>与 MHCⅡ类分子结合的 CD分子是 A: CD3 B: CD4 C: CD8 D: CD28 E: CD2