prometaphase


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pro·met·a·phase

(prō-met'ă-fāz),
The stage of mitosis or meiosis in which the nuclear membrane disintegrates and the centrioles reach the poles of the cell while the chromosomes continue to contract.

pro·met·a·phase

(prō-met'ă-fāz)
The stage of mitosis or meiosis in which the nuclear membrane disintegrates and the centrioles reach the poles of the cell, while the chromosomes continue to contract.

prometaphase

(prō-mĕt′ă-fāz) [″ + meta, change, + phasis, to appear]
The stage of mitosis in which the nuclear membrane disintegrates, and the chromosomes move toward the equator of the cell.
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References in periodicals archive ?
These stages are prophase, prometaphase, metaphase, anaphase, and telophase.
In prometaphase I, the poles of the QMS converge in pairs toward the spindle axis (Fig.
The purpose of use of colchicine in this research was to determine the possible existence of numerical and structural changes in the chromosomal set of meristimatical cells stopping mitosis in prometaphase.
The Caenorhabditis elegans kinetochore reorganizes at prometaphase and in response to checkpoint stimuli.
Activation of a novel ataxia-telangiectasia mutated and Rad3 related/checkpoint kinase 1-dependent prometaphase checkpoint in cancer cells by diallyl trisulfide, a promising cancer chemopreventive constituent of processed garlic.
Chromosome plates of prometaphase and metaphase II consist of bibrachial (meta- or submetacentric) and monobrachial chromosomes of different sizes (Fig.
The mouse oocytes were recovered at different time after hCG injection (Figure 1A), and then were classified, under a confocal microscope, as germinal vesicle (GV, Figure 2B), prometaphase I (pMI, Figure 2C), metaphase I (MI, Figure 2D), anaphase I (AnI, Figure 2E), telophase I (TelI, Figure 2F) and metaphase II (MII, Figure 2G and H) stages.
CENP-E is also essential for prometaphase chromosome movements that contribute to metaphase chromosome alignment.
If the underlying condition or syndrome is not detected, then testing for prometaphase chromosomes and fragile X syndrome, as well as a brain MRI, should be done.
These centromere chains rapidly consolidate into a single horizontal, centromere ring during prometaphase which forms the hub of the chromosome rosette.
In spite of this QMS in early prophase, the prometaphase spindle is multipolar in origin (Fig.