A prophase of the same division (fig. 104) proves that the small chromosome divides quantitatively like the others.
The prophase of the spindle, as in Odontota, is much elongated (fig. 112).
prophase of same mitosis, showing symmetrical and unsymmetrical pairs, as in figs. 178 and 179.
The prophase covers all changes up to the completion of the mitotic figure.
prophase of second maturation mitosis, showing dyads and element x.
prophase of second division; dyads evident, but no sign of x in this or following stages.
prophase of first maturation mitosis, showing the unsymmetrical pair and the tetrad nature of the symmetrical pairs.
prophase of first maturation mitosis, some of the chromosomes split longitudinally.
Figure 145 is a prophase showing the bivalent chromosomes still connected by linin fibers.
prophase: Chromatin in thickened convoluted threads, beginning of Spindle.
prophase pro·phase (prō'fāz')
The first stage of mitosis, during which the chromosomes condense and become visible, the nuclear membrane breaks down, and the spindle apparatus forms at opposite poles of the cell.
The first stage of meiosis, during which the DNA replicates, homologous chromosomes undergo synapsis, chiasmata form, and the chromosomes contract.