$A$ bivalent of meiosis $I$ consists of

During which stage does the chiasmata become visible?

Meiosis can be observed in

Chiasmata are formed as a result of which of the following?

In meiosis,the daughter cells are not similar to that of parent because of

Which of the following statement$(s)$ is/are not correct about meiosis?
$I.$ Meiosis involves pairing of homologous chromosomes and recombination between them.
$II.$ Two diploid cells are formed at the end of meiosis-$II$.
$III.$ Meiosis involves two sequential cycles of nuclear and cell division called meiosis-$I$ and meiosis-$II$,but only a single cycle of $DNA$ replication.
$IV.$ Meiosis-$I$ is initiated after the parental chromosome replication which produces identical sister chromatids at the $S$-phase.
The correct option is