Identify the odd one out:

Choose the correct option for the formation and disappearance of the bipolar spindle in a cell,respectively.

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

Cellular multiplication occurs through which process?

The best stages to study the morphology and shape of a chromosome are respectively:

Identify the correct statements: $(1)$ Synapsis occurs between homologous chromosomes during prophase $I$ of meiosis. $(2)$ Centromeres split during anaphase $I$ of meiosis. $(3)$ Spindle fibers completely disappear during telophase of mitosis. $(4)$ Nucleoli reappear during telophase $I$ of meiosis.