- Reproduction of unicellular organisms by budding.
- Development of an embryo during cleavage and germ layer formation.
- Transformation of small lymphocytes of human peripheral blood in tissue culture into large, morphologically primordial blastlike cells capable of undergoing mitosis; can be induced by various agents including phytohemagglutinin, concanavalin A, certain antigens to which the cell donor has been previously immunized, and leukocytes from an unrelated individual.
[blasto- + G. genesis, origin]
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Examples: glitazone, GI cocktail, etc.