The cells of the skin which are responsible for the sense of touch are called A: keratinocytes B: Merkel cells C: Langerhans cells D: T-cells

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2022-06-11 问题

The cells of the skin which are responsible for the sense of touch are called A: keratinocytes B: Merkel cells C: Langerhans cells D: T-cells

2022-07-28 问题

转基因小鼠技术采用的细胞是( )。 A: ES cells B: EG cells C: B cells D: T cells

2022-06-18 问题

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

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

2022-05-29 问题

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

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

2022-06-06 问题

Compared with normal mice, mice immunized with antigens for many times have the larger and heavier spleens because of ( ). A: proliferation of antigen specific T cells B: proliferation of antigen specific B cells C: proliferation of antigen specific T and B cells D: proliferation of antigen non-specific T and B cells

Compared with normal mice, mice immunized with antigens for many times have the larger and heavier spleens because of ( ). A: proliferation of antigen specific T cells B: proliferation of antigen specific B cells C: proliferation of antigen specific T and B cells D: proliferation of antigen non-specific T and B cells

2021-04-14 问题