In which process is nuclear division indirect?

In plant cells,the number of Golgi bodies increases during:

Identify the correct statements:
$(i)$ Synapsis occurs between homologous chromosomes during Prophase-$I$ of meiosis.
$(ii)$ Centromere division occurs during Anaphase-$II$ of meiosis.
$(iii)$ Spindle fibers completely disappear during Telophase of mitosis.
$(iv)$ The nucleus reappears at the Telophase-$I$ stage of meiosis.

While examining the mitotic stage in a tissue,one finds some cells with $16$ chromosomes and some with $32$ chromosomes. What possible reasons could you assign to this difference in chromosome number? Do you think cells with $16$ chromosomes could have arisen from cells with $32$ chromosomes or vice versa?

Match the following columns correctly:

Column-$I$	Column-$II$
$(a)$ Number of cells in an adult human body	$(p)$ $90$ minutes
$(b)$ Average cell cycle duration of a human cell	$(q)$ $10^{14}$
$(c)$ Total sub-phases of Interphase	$(r)$ $24$ hours
$(d)$ Typical cell cycle duration of yeast	$(s)$ $3$

$(1)$ Definition / Explanation: Mitosis
$(2)$ Definition / Explanation: Meiosis