The condensation of chromatin material starts in which phase of the cell cycle?

Read the following statements:
$(a)$ Complete disintegration of the nuclear envelope marks the start of the second phase of mitosis.
$(b)$ Metaphase chromosome is made up of one sister chromatid.

In which phase of mitosis are the chromosomes arranged around the equator of the spindle?

Which of the following structures disappear during the $M$ phase of mitosis?

Which of the following processes is not associated with prophase?

The shortest phase of mitosis is .........