Crossing over occurs in $ \dots $.

The chromosome number is reduced in which phase of meiosis?

$A$: In the diplotene sub-stage,the two chromosomes of a homologous pair move away from each other.
$R$: The connection is maintained at the site where crossing over has occurred in homologous chromosomes.

$A$ diploid cell which has $8$ chromosomes undergoes meiosis and produces $4$ daughter cells. What is the number of chromosomes present in each daughter cell formed at the end of meiosis-$I$?

During which stages (or prophase $I$ substages) of meiosis do you expect to find the bivalents and $DNA$ replication respectively?

Which of the following statements is consistent with meiosis?