During $meiosis-I$,the bivalent chromosomes clearly appear as tetrads during

Match List-$I$ and List-$II$ and select the correct answer using the code given below in the lists:

List-$I$ (Phase of meiosis)	List-$II$ (Event that occurs)
$1$. Prophase $I$	Crossing over occurs
$2$. Metaphase $I$	Sister chromatids migrate to opposite poles
$3$. Anaphase $I$	Homologous chromosomes line up at the equator in pairs

Identify the correct pair:

Meiosis occurs in which of the following cells?

In the given figure,what is the ploidy of the chromosomes in the cell labeled $Q$?

If a cell has a chromosome number after first meiosis equal to $48$,the chromosome number in the daughter cells after the completion of meiosis will be: