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

Crossing over takes place between

Given below are two statements:
Statement $I$: Chromosomes become gradually visible under light microscope during leptotene stage.
Statement $II$: The beginning of diplotene stage is recognized by dissolution of synaptonemal complex.
In the light of the above statements,choose the correct answer from the options given below:

In which stage does crossing over occur?

At the end of meiosis-$II$,the number of haploid cells formed is:

Which of the following statements is false?