Question VII. Because individual T cells can rearrange more than one TCR ? chan,

Question

Question VII. Because individual T cells can rearrange more than one TCR ? chan, each individual cell [complete the sentence and assess the resulting statements (72-78) as eihefaually correct (true) 72. can bind multiple antigens. 73. can bind both class I and class II MHC molecules. 74. cannot bind both class I and class II MHC molecules. 75. can participate in both cellular and humoral immunity. 76. cannot participate in both cellular and humoral immunity. 77. can respond to a hapten attached to a carrier molecule. 78. is not allelically excluded for a chain

Explanation / Answer

72. True . T-cells can bind multiple antigens. Because T-CELLS can rearrange more than one TCR alpha chain.

73. False . Not any T cells can bind with both type of MHC molecules cytotoxic T cell binds with MHC class I with its CD 8 receptor. And Helper T cells binds with MHC class II with CD4 receptor.

74. True.

75. True. Cytotoxic T cell gives cellular immunity and Helper T-cell helps in proliferation of B cells which leads to humoral immunity.

76. False.

77. True . It can respond against hapten with the help of ADCC.

78. True. T-cell is not allelically excluded for alpha chain.

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