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At which stage of meiosis does the centromere divide?

In higher organisms,crossing over that results in genetic recombination occurs between .......

$A-$ In meiosis,during anaphase $I$,homologous chromosomes move to the opposite poles.
$R-$ Each pole receives half the number of chromatids in anaphase $I$.

What is the first division of meiosis called?

$A$: In the diplotene sub-stage,the two chromosomes of a homologous pair move away from each other.
$R$: The connection is maintained at the site where crossing over has occurred in homologous chromosomes.