T cell response to T-cell-dependent antigen reqiures:
a) typically a protein antigen
b) binding of T cell to a Class II MHC receptor on a
c) binding of T cell to a site on the antigen
d) interleukin-1 activating the T helper cell
e) all of the choices are correct
a) contain modified bacterial exotoxin molecules
b) are always genetically engineered
c) contain select antigenic components of a pathogen
rather than whole cells or viruses
d) confer passive immunity
1. All of the choices are correct.
2. Antitoxins - are derived ...