题目内容

Which gene of following molecule locate on MHC-Ⅲ gene region ()

A. IGF-β
B. IFN
CSF
D. TNF
E. LIF

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Cytokines include ()

A. TCR
B. IFN
C. BCR
D. C4
E. B factor

Prokaryotes do not include ()?

A. mycoplasma
B. chlamydia
C. rickettsia
D. virus
E. none of the above

Who is the first man observed microorganism under microscope ()

A. Louis Paseur
B. Robert Kock
C. Leeuwenhoek
D. Walter Reed
E. none of the above

The special components of Gram-positive cell wall is ()

A. peptidoglycan
B. chitin
C. cholesterol
D. teichoic acids
E. none of the above

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