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germ-plasm
Значение термина germ-plasm в knolik
germ-plasm - germ-plasm
germ-plasm - A particular sort of protoplasm which Weismann (1834-1914) suggested was transmitted substantially unchanged from generation to generation via the germ-cells, giving the rise in each individual to the body-cells (soma) but itself remaining distinct and unaffected by the environment of the individual (theory of continuity of the germ-plasm). Roughly equateable with modern genes which however are not restricted to germ-cells but occur in all cells. A special cytoplasm in ovum which during embryonic development becomes restricted to future germ-cells of adult, a sort of germ-plasm which does not however give rise to the soma, has been demonstrated in some animals, though not in others.
Рядом со словом germ-plasm в knolik
| germ-layer | В начало буква "" буквосочетание "" | gestation period |
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