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

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

Which of the following types of cell division is a characteristic feature of chondrocytes,the macronucleus of Paramecium,and embryonic membranes?

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.

Select the correct statements.
$A$. Tetrad formation is seen during Leptotene.
$B$. During Anaphase,the centromeres split and chromatids separate.
$C$. Terminalization takes place during Pachytene.
$D$. Nucleolus,Golgi complex and $ER$ are reformed during Telophase.
$E$. Crossing over takes place between sister chromatids of homologous chromosomes.
Choose the correct answer from the options given below:

Which of the following is an incorrect pair?