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Home Q & A Board Biology-Related Homework Help Cell Biology
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barry barry
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10 years ago
T-cell help of B cells will be impaired if the T cells lack CD28 because:

A.   CD28 is needed to activate class switching by turning on AICD.
B.   CD28 is needed to interact with CD40 on the B cell.
C.   CD28 is needed to signal through the B-cell receptor.
D.   CD28 is needed to signal through the T-cell receptor.
E.   Both B and C.
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padrepadre
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#1
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10 years ago
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barry Author
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#2
10 years ago
Thanks.
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