When,during the meiotic division,do the centromeres divide?

Meiosis-$I$ is a reductional division. Meiosis-$II$ is an equational division because ...........

The function of recombinase is found in which stage of meiosis?

Choose the correct option:
$(1)$ Meiosis occurs in human germ cells / zygotes.
$(2)$ The process of pairing of homologous chromosomes is called synapsis / desynapsis.

Crossing over takes place at a stage between

Synaptonemal complex is formed during