In which of the following stages are chromosomes attached to the equatorial plane?

The $M$ phase starts with ..........

The most dramatic period of the cell cycle is:

Which of the following events is not associated with telophase?

Choose the correct sentences for $telophase$.
$1.$ Chromosomes are arranged at the equator.
$2.$ Formation of nuclear membrane.
$3.$ At the end of this phase,nuclear membrane,Golgi complex,and endoplasmic reticulum are reformed.
$4.$ End of contraction of chromosome.
$5.$ This phase starts with chromosomes according to their vertical contraction.

What is a kinetochore?