The antigen-binding cleft of MHC class I molecule locates in
A. α1 and β1 domains
B. α1 and α2 domains
C. β1 and β2 domains
D. α2 and α3 domains
E. α2 and β2 domains
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The properties of cytokine DO NOT include
A. The cytokines play roles mainly by autocrine and paracrine patterns.
B. The cytokine’s secretion is a self-limited event.
C. One cytokine may be synthesized by several types of cells.
D. The cytokines initiate their effects by binding to their receptors.
E. Multiple cytokines may mediate the same biological effects.
Which of the following statements is correct about Ag?
A. TD-Ags only contain T epitope.
B. TI-Ags may cause cellular immune response and humoral immune response.
C. TI-Ags may induce immune memory.
D. TI-Ags can stimulate the production of IgG and IgM.
E. There is MHC restriction in the immune response to TD-Ags.
Which class of Ig has secretory piece?
A. IgG
B. IgM
C. SIgA
D. IgE
E. IgD
Which statement regarding fungal growth and morphology is correct?
A. Pseudohyphae are produced by all yeasts
B. Molds produce hyphae that may or may not be partitionedwith cross-walls or septa
Conidia are produced by sexual reproduction
D. Most yeasts reproduce by budding and lack cell walls
E. Most pathogenic dimorphic molds produce hyphae in thehost and yeasts at 30℃
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