Which of the following is the initial stage of meiosis $I$?

During gamete formation,the enzyme recombinase participates during

$A$ : Anaphase-$I$ is the actual phase of reduction in the number of chromosomes.
$R$ : Homologous chromosomes move to the opposite poles with both their chromatids.

In meiosis,how do the daughter cells differ from the parent cell and from each other?

Identify the figure:

In meiosis,at which stage does the chromosome number actually become halved?