The<unk>  was a proposed explanation for immunoglobulin diversity that proposed that each antibody was encoded in a separate germline gene. This does not occur in most species (including humans), but may occur in Elasmobranchs. For decades microbiologists searched for a mechanism that could explain the large diversity of antibody structure. For this reason the<unk>  emerged. According to this<unk> , the genomes contributed by the germ cell, sperm and egg contained a large repertoire of immunoglobulin genes. It was clear that there should be a mechanism that help the antibody to have diversity and keep it constant. The<unk>  could not provide any explanation on this aspect.
Germ line theory
Classical genetics
Human cloning
Epigenetics
Behavioral epigenetics
Germ theory of disease
Project MKUltra
Structural inheritance