geno-, gen-, genit-, gener-, -gen
(Greek > Latin: race, kind; line of descent; origin, creation; pertaining to sexual relations, reproduction, or heredity; and more recently, a gene or genes)
2. Egg development activated by a spermatozoon, but to which the male gamete contributes no genetic material.
3. The process in which an egg develops parthenogenetically after the egg has been activated by sperm or pollen; pseudogamy.
4. The development whereby the embryo contains only the female parent’s chromosomes because the sperm that activated the ovum degenerated before it could combine with the egg nucleus.
In the embryo and fetus it takes place in a variety of sites including the liver, spleen, thymus, lymph nodes, and bone marrow; from birth throughout the rest of one's life it is mainly in the bone marrow with a small amount occurring in lymph nodes.
2. The generation of animals or vegetables of low organization from inorganic matter; abiogenesis; spontaneous generation.
3. In medicine, of a disease: produced by infection from outside the body.
4. Alternation of generations.
2. Composed of diverse elements or constituents; consisting of parts of different kinds; not homogeneous.
2. The creation and development of tissues arising from undifferentiated embryonic cells.
Histogenesis involves the formation of multinucleate fibers and striations of muscle and of collagen and fibroblasts in the skin.