The pairing of homologous chromosomes,known as synapsis,occurs in which stage of meiosis?

Crossing over that results in genetic recombination in higher organisms occurs between

In which stage does crossing over occur?

Give the name of the phases of meiosis,in which
$I.$ the chromosome number is reduced to haploid state
$II.$ the amount of $DNA$ is reduced to haploid state
The correct option is

In which stage does synapsis occur?

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