Which is the initial stage of meiosis?

Exchange of chromosome segments between maternal and paternal chromatids during meiosis is called

During the first meiotic division, the exchange of genetic material between the chromatids of homologous chromosomes occurs. What is this process called?

$A$ : Chiasmata counting stage is diplotene.
$R$ : Dissolution of the synaptonemal complex occurs except at the sites of crossovers.

The synaptonemal complex is first seen in ...........

Meiosis differs from mitosis as