clonal-selection theory
clonal-selection theory A theory of antibody specificity to account for the very great variety of immunoglobins that an organism may produce, and the absence of antibodies that react with the organism's own cells. The theory suggests that during embryonic development a vast population of lymphoid cells is produced, each possessing the ability to synthesize a different antibody. There follows selection by cloning of only those cells that produce antibodies with configurations that are not complementary to any antigens normally present in the embryo.
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August Weismann , Weismann, August Friedrich Leopold
(b. Frankfurt am Main, Germany, 17 January 1834; d. Freiburg im Breisgau, Germany, 5 November 1914), zoology.
Weis… Cell Theory , Cell theory states that the cell is the basic building block of all life forms and that all living things, whether plants or animals, consist of one… germinal selection , germinal selection
1. The selection (by people) of germ cells (sex cells from which gametes are derived) that possess qualities recognized as superio… Cytology , Cytology is the branch of biology that studies cells, the building blocks of life. The name for this science is translated from kytos, the Greek term… B Cell , B cell (B lymphocyte) A lymphocyte that is derived from stem cells in the bone marrow but does not mature in the thymus (compare T cell); in birds it… Plasma Membrane , Plasma membranes envelop all plant and animal cells and all single-celled eukaryotes and prokaryotes , separating them from their environments. Struc…
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clonal-selection theory