Answer:
377
Explanation:
you plus 252and 125 together and you will get 377
Answer:
The peptide:MHC class II complex can be recognized by antigen-specific armed ... Some microbial antigens can activate B cells directly in the absence of T-cell help. ... 9-1. The humoral immune response is initiated when B cells that bind antigen ... cells presenting these internal peptides can then activate the B cell to make . Explanation:
2 the Double Helix by James Watson and what mad pursuit by Francis crick
B because it sets the scene and describes what it is like!