If you are provided with a root tip of an onion in your class and asked to count the chromosomes,which of the following stages would be most suitable for observing the chromosomes?

In which phase of cell division do the nuclei formed at both polar regions appear?

Which of the following does not occur during prophase?

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.

In which phase of mitosis do the spindle fibers shorten,causing the centromere to split?

Chromosomes become long and thin,eventually turning into chromatin material,and the nucleolus and nuclear envelope reappear. In which phase are these changes observed?