Exempel på anaphase

• We postulate further that this primary lesion leads in turn to failures in other components of the machinery involved in chromosome separation at anaphase.

• The irregularity of chromosome separation was displayed as chromosome bridges between daughter nuclei in anaphase and telophase.

• Calcium rises abruptly and briefly throughout the cell at the onset of anaphase.

• Saccharomyces cerevisiae kinesin- and dynein-related proteins required for anaphase chromosome segregation.

• The checkpoint delaying anaphase in response to chromosome monoorientation is mediated by an inhibitory signal produced by unattached kinetochores.

• In this pairing, anaphase is not only delayed but is partially reversed with the redispersal of chromosomes on an abortive metaphase spindle.

• The anaphase and telophase spindles possessed both a prominent array of interzone microtubules and asters.

• However, we did not observe significant differences in the anaphase/metaphase ratio of mutant and control larvae.

• This occurs in the absence of, or as an alternative to, the anaphase/telophase transition.

• This is a representative embryo that was fixed during the metaphase/anaphase transition of the first cell division cycle.

• Mosaicism could arise through several mechanisms including abnormal cell divisions (mitotic non-disjunction or anaphase lag), failure of cytokinesis or endoreduplication.

• Intracellular free calcium and mitosis in mammalian cells: anaphase onset is calcium modulated, but is not triggered by a brief transient.

• The role of calcium ions during mitosis: calcium participates in the anaphase trigger.

• In the second meiotic divisions, chromosome breaks and chromatin bridging at anaphase were observed.

• Therefore, anaphase could not be initiated as long as the chromosomes were not properly linked to the spindle microtubules.