mother cell n.
A cell that divides to produce two or more daughter cells. Also called metrocyte.
At each division the mother cell renews its youth and multiplies, without ever dying.
The sagittal plane of the valve of the auxospore is at right angles to the plane of the valve of the mother cell.
By crushing the ripe spore fruit, these spores still enclosed in the mother cell (ascus) may be forced out (Fig. 39, H).
Before, however, we can have true germ plasm the mother cell must be fertilized by the male cell.
When ripe, the wall of the mother cell gives way, and the four spores escape into the water and give rise to new plants.
The two valves of the other mother cell are not shown as they are not usually found closely united.
Thus around each centrosome are grouped as many chromosomes as the mother cell possessed itself (Fig. 8).
See parent cell.