What is the replication of chromosomes without the division of the nucleus called?

Identify the correct statements.
$(i)$ Somatic cells undergo mitosis,and germ cells undergo meiosis.
$(ii)$ During mitosis,$DNA$ replicates once for one cell division,and in meiosis,$DNA$ replicates twice for two cell divisions.
$(iii)$ Meiosis and mitosis are observed in organisms that reproduce both sexually and asexually.

$DNA$ replication occurs in .........

Which element is required for the formation of the bipolar spindle during cell division?

Which of the following processes is not associated with the $S$ phase of the cell cycle?

$A$ single cell containing a large number of nuclei is called: