In which stage of meiosis does the enzyme recombinase play a role?

The temporarily suspended stage of diplotene during meiosis-$I$ is known as:

Assertion : Diplotene is characterized by the presence of chiasmata.
Reason : Diplotene can last for months and years in oocytes of some vertebrates.

What happens to the number of chromosomes after the $I$ phase of meiotic division?

In the given figure,what type of cell division is observed in the cell labeled $R$?

Meiosis involves.....