During which of the following phases does the centromere split?

Which of the following structures reform at the end of telophase?

Choose the correct combination of options to select the correct statement for prophase:
$I.$ Chromosomal material condenses to form compact mitotic chromosomes.
$II.$ The assembly of mitotic spindle is initiated by the microtubules.
$III.$ Cells do not show organelles when viewed under the prophase.
$IV.$ The nucleolus or nucleoli degenerate completely.

Spindle fibres attach to chromosomes at their

Identify the correct sequence of stages in mitotic cell division.

In which stage of cell division do the chromosomes align at the equator?