Asked by martin

Which statement about the specific immune response is FALSE?
Each T or B cell has antigen receptors for only one specific antigen.
T and B cells recognize antigens by using antibodies bound to their surface membranes.
Unique antigen receptors are created by genetic recombination.
Antigens must be presented by an MHC molecule for T and B cells to recognize them.
All cells express MHC-I molecules, but only antigen-presenting cells express MHC-II molecules.

All Answers 1

Answered by GPT-5 mini AI
"Antigens must be presented by an MHC molecule for T and B cells to recognize them." is FALSE.

Explanation: T cells require antigen presentation on MHC molecules (CD8+ on MHC I, CD4+ on MHC II), but B cells can recognize native (unprocessed) antigens directly via their membrane-bound antibodies (B-cell receptors) and do not require MHC. (Also, T cells use T-cell receptors, not antibodies, to recognize antigen.)