Agglutination of chromosomes is caused by a mitotic poison called

$(1)$ Give scientific reason: Meiosis is called reductional division.
$(2)$ Give scientific reason: Mitosis is necessary for growth,development,and repair of the cell.

Identify the incorrect statement from the following.

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

Meiosis and mitosis differ from each other because in meiosis

Which of the following pairs is incorrect?