Origin of immune diversity: genetic variation and selection.

Alleles Animals Antibody Affinity Antibody Diversity Biological Evolution Chromosome Deletion Genetic Variation Humans Immunoglobulin Constant Regions/genetics Immunoglobulin Heavy Chains/genetics Immunoglobulin Variable Region/genetics Immunoglobulins/genetics Macromolecular Substances Major Histocompatibility Complex Models, Biological Mutation Receptors, Antigen, T-Cell/genetics Recombination, Genetic Thymus Gland/immunology

Immunoglobulin Constant Regions Immunoglobulin Heavy Chains Immunoglobulin Variable Region Immunoglobulins Macromolecular Substances Receptors, Antigen, T-Cell