Distinct amino acid sequence at the antigen combining site is called:
Ans. (a)Idiotype is based on antigenic difference in the hypervariable region.Allotype is based on alleleic difference in immunoglobulins e.g., Gm type.Isotype is antigenic differences in constant regions of heavy chain decide isotypes.
Idiotype
Allotype
Epitope
Paratope
Immunology