What's the difference between karyokinesis and karyokinetic?
Karyokinesis
Definition:
(n.) The indirect division of cells in which, prior to division of the cell protoplasm, complicated changes take place in the nucleus, attended with movement of the nuclear fibrils; -- opposed to karyostenosis. The nucleus becomes enlarged and convoluted, and finally the threads are separated into two groups which ultimately become disconnected and constitute the daughter nuclei. Called also mitosis. See Cell development, under Cell.
Example Sentences:
(1) These results indicate a hierarchy of requirements for high pHi during early development of sea urchin embryos, with protein synthesis, karyokinesis, and cytokinesis showing, respectively, increasing requirements for an elevated pHi.
(2) Since we found that PMA-mediated formation of binuclearity was not the effect of cell fusions, it was assumed that the inhibition of cytokinesis preceded by karyokinesis was responsible for binuclearity.
(3) Plant cytokinesis in a particular orientation and location can be viewed as having several component stages, often beginning with the establishment of division polarity before karyokinesis occurs.
(4) We have found that nocodazole reversibly inhibits nuclear migration and can be used to induce karyokinesis before the completion of nuclear migration, resulting in spindles that are displaced toward the hypothecal end of the cell.
(5) Double nucleated cells occur in hypertrophying cells by karyokinesis without subsequent cytokinesis, perhaps in response to the intense protein synthetic demands of normal growth.
(6) The spindle had a broad polar region and did not commence karyokinesis in the first maturation division.
(7) With respect to karyokinesis, mitotic apparatus (MA) structure often was altered when the PI cycle was blocked, and anaphase was blocked when the PI cycle was blocked.
(8) These concentrations of cytochalasin B blocked cytokinesis but not karyokinesis with the result that cells became multinucleate after mitoses.
(9) Despite the ability for karyokinesis, it is concluded that astrocytes do undergo changes with ageing.
(10) These calmodulin-binding proteins may be involved in regulating microtubule organization and depolymerization during karyokinesis.
(11) The spleen was swollen, and the corpuscles and karyokinesis of the cell decreased.
(12) Chromosomes finally entered one blastomere, although they did not participate in the following karyokinesis.
(13) Karyokinesis proceeds to completion under a low pHi, but is retarded, while cytokinesis is always impaired.
(14) We conclude that the mechanism of giant cell DNA amplification involves multiple rounds of DNA replication in the absence of both karyokinesis and cytokinesis, and that sister chromatids, but not homologous chromosomes, remain closely associated during this process.
(15) Similar changes are visible in the contralateral testis which also demonstrates the evolution of multinucleate spermatids by karyokinesis without cytokinesis.
(16) During karyokinesis the nucleolus remained present and divided to form polar masses.
(17) Apparently, the parasite had genetically altered a metabolic pathway necessary for both the initiation of DNA replication and karyokinesis.
(18) Our results would also suggest that activation of gene expression is simply related to neither cell number nor time spent in culture since fertilization, but may be related to continuing karyokinesis.
(19) It starts with synthesis of the new MP a few minutes upon karyokinesis has been completed.
(20) The same dichotomy between the levels of the two decarboxylases was observed for meningiomas, in which ODC levels were higher in atypical forms (with karyokinesis) then in typical forms (without karyokinesis).
Karyokinetic
Definition:
(a.) Of or pertaining to karyokinesis; as, karyokinetic changes of cell division.
Example Sentences:
(1) In addition, some of the prophase cells showed extension of the karyokinetic nucleus into the bud unaccompanied by the MTOC and swelling of the middle piece of the MTOC.
(2) Observation of serial sections showed that the separation of chromosomes occurred in the karyokinetic nucleus in the bud, that the microtubule organizing center (MTOC) was composed of two globular elements and a bridged middle piece, and that the nuclear envelope of the karyokinetic nucleus was partially destroyed during mitosis.
(3) We interpret these results to indicate that in mammalian cell lines there exists a checkpoint which serves to couple cell cycle progression to the completion of certain karyokinetic events.
(4) Effect of long-term treatment of norethisterone (a progestogen-only contraceptive) on the salivary glands of the cycling albino rats was evaluated from histomorphic and karyokinetic standpoints.
(5) Karyokinetic cellular activity is increasing from the 3rd day and reacting its peak on the 4-5 day of the experiment.