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Glycogenesis. [R.]

The production or formation of sugar from gycogen, as in the liver.

The origin and development of blood.

Same as Ontogeny.

the original form, however, reappearing after one or more generations; -- opposed to homogenesis, or gamogenesis.

The formation and development of organic tissues; histogeny; -- the opposite of histolysis.

g, either animal or plant, running through the same cycle of existence as the parent; gamogenesis; -- opposed to heterogenesis.

n of the embryo to the peculiar conditions of its environment; -- distinguished from palingenesis. [Written also cænogenesis.]

An instrument for producing curves by the combination of circular movements; -- called also kinescope.

The formation of leucocytes.

ending from the one developed from the ovum to the final perfected individual. Hence, metagenesis involves the production of sexual individuals by nonsexual means, either directly or through intervening sexless generations. Opposed to monogenesis. See Alternate generation, under Generation.

(Biol.), development of all beings in the universe from a single cell; -- opposed to polygenesis. Called also monism. Dana. Haeckel.

al organism, -- in distinction from phylogeny, or evolution of the tribe. Called also henogenesis, henogeny.

The development, or mode of origin, of the ova.

The origin and development of organs in animals and plants.

The formation or growth of bone.

Reproduction by young or larval animals.

eredity are reproduced in development; original simple descent; -- distinguished from kenogenesis. Sometimes, in zoölogy, the abrupt metamorphosis of insects, crustaceans, etc.

An hypothesis advanced by Darwin in explanation of heredity.

The science which treats of minerals with special reference to their origin.