Caption: Figure 6: Metaphase plate
of aspen clone PtV-22: 2n = 38.
However, H3S10P prevalence extended along the chromosomes, with completion observed during prometaphase and remaining evident at the metaphase plate
, but disappearing during anaphase and telophase (Figure 3).
The metaphase plate
of chromosomes occupies the equatorial cleavage furrows at right angles to the polar cleavage furrows, [gamma]-Tubulin is concentrated in the polar regions, although some signal is distributed throughout the spindle (Fig.
The egg spindle and metaphase plate
can indeed be removed by micro-manipulations.
Karyotyping showed mosaic type of TS 45, XO/46, XX in metaphase plates
Eighty metaphase plates
were counted and a proper plate was selected to obtain karyotype formulae.
In every metaphase plate
, only primary constrictions (centromeres) were observed.
All the chromosomes are finally aligned in the center of the spindle and attached to fibers, forming what has been termed the metaphase plate
. At this point in the process metaphase is complete, and the next sequence of events is grouped under anaphase.
Using three pairs of students, there are eight potential arrangements (23 combinations) of chromosomes at the metaphase plate
. Three male students and three female students are asked to volunteer to serve as paternal and maternal members of three homologous pairs.
Cells with polyploid metaphase (more than 90 chromosomes) and some with metaphase plate
were also observed (Figure 2).
The first polar body and the metaphase plate
of an oocyte were drawn into an enucleation pipette (20 to 22 [micro]m i.d.).
No significant difference in this time was observed between cells that reoriented their metaphase plate
and cells that did not (12.5 [+ or -] 2.7 mm vs.