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 ?
In conjunction, the equilocal distribution at metaphase, the particular arrangement at prometaphase and interphase, and the condensed state throughout the cell cycle, illustrate the mode of dispersion of the distinct heterochromatic fractions in variety Pendulum in the terms defined by Schweizer and Loidl (1987).
In all the slides, it was possible to observe different phases of mitosis; prophase, prometaphase, metaphase, anaphase, telophase and interphase.
Prometaphase is not observed in any of the analyzed concentrations except for one 8-hour treatment, concentration of 100 [micro]g/ml and in the control cultures 3 prometaphases (Table 2).
Recurrent pole-to-pole movements of the sex chromosome during prometaphase I in Melanoplus differentialis spermatocytes.
Bibrachial and monobrachial chromosomes of different sizes were observed at prometaphase and metaphase II (Fig.
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.
The diploid number was determined by counting twenty metaphase and prometaphase spreads.
1] plants from the two monosomic plants were determined at mitotic metaphase or prometaphase by using the cytological methods described by Singh et al.
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.
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.