The substance from which attraction spheres develop inmitotic cell division, and of which they consist.
The central mass of the aster in mitotic cell division; centrosphere.
The device will then scan, identify, and photograph on 35-mm film a predetermined number of mitotic cells and process the film.
In the fission of the Infusoria, every micronucleus divides by a true mitotic process, during which, however, its wall remains intact.
Experiments with algae have shown that in the absence of calcium salts mitotic cell division takes place, showing that the nucleus functions properly, but the formation of the new transverse cell-wall is retarded.
It is an essential constituent of the nucleus, and a meager supply of phosphorus retards, or inhibits, mitotic cell-division.
This distinction between the chromatic and achromatic portions of the mitotic figure is due to Flemming.
Various elaborate theories have been propounded to explain the mechanism of the mitotic figure.
The prophase covers all changes up to the completion of the mitotic figure.
The chromatin is therefore incapable of undergoing reproductive fission in two successive mitotic divisions when these are not separated by a resting (i.
The details of the formation of the achromatic figure vary considerably, some indication of this is given in the next section in connexion with the question of the origin of the mitotic mechanism.
It is indeed usually assumed that the mitotic mechanism is not merely for the distribution, but for the equal distribution, of the sister granules to the two daughter nuclei.
Fol (1873) regarded the centrosomes as centres of attractive forces, and compared the mitotic figure to the lines of force in the magnetic field, a comparison made by numerous subsequent workers.
The discovery by Hermann of the central spindle first clearly showed that two kinds of fibres must be recognized in the mitotic figure.
The two germ nuclei which enter into the formation of the first mitotic figure of the developing egg are not only physiologically equivalent, but, at the time of their union in the egg, are usually morphologically identical.
In almost all cases the centrosome of the resting cell, when this can be detected, lies in the cytoplasm, and is often already divided in preparation for the next mitotic division (e.
The inability of the mitotic mechanism to effect the transverse division of unsplit chromosomes is pointed out by Boveri (1904).
It is accomplished by a modification in the mitotic division in which instead of each chromosome splitting lengthwise, as in ordinary mitosis, the chromosomes unite in pairs (Fig.
Moreover, in all ordinary mitotic divisions where the conditions are accurately known, these chromosomes of different types are found to be present as pairs of similar elements; that is, there are two of each form or size.
The two perfected germ-cells before fecundation are in a state of nuclear rest after the numerous mitotic changes that have taken place in the maturation of these cells.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "mitotic" in a variety of sentences. We hope that you will now be able to make sentences using this word.
