Normally a somatic cell in human beings contains . . . . . . number of chromosomes.

Identify the stage of cell division and name the structure labeled as $P$.

Observe the diagrams carefully and identify the different stages of mitosis $(A-C)$ by choosing the appropriate options given below.

Compare the statements $A$ and $B$.
$Statement A$: Synthesis of $DNA$ takes place in the $S$-phase of interphase.
$Statement B$: Every chromosome,during metaphase,has two chromatids.
Choose the correct description.

During cell division,sometimes there will be failure of separation of sister chromatids. This event is called

Given below is a schematic representation of the phases/stages of the cell cycle. Which one of the following is the correct indication of the stage/phase in the cell cycle?