Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres.

In which stage do the bivalent chromosomes appear as tetrads?

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:

Choose the correct sentences.
$1.$ Meiosis is an important process for evolution.
$2.$ In meiosis-$II$,the mother cell is haploid.
$3.$ In anaphase-$II$,homologous chromosomes are separated.
$4.$ After meiosis,each daughter cell has the same $DNA$ strands.

The final stage of meiotic prophase-$I$ is ......

Match the stages of meiosis in Column-$I$ to their characteristic features in Column-$II$ and select the correct option using the codes given below.

Column-$I$	Column-$II$
$(A)$ Pachytene	$(i)$ Pairing of homologous chromosomes
$(B)$ Metaphase-$I$	$(ii)$ Terminalisation of chiasmata
$(C)$ Diakinesis	$(iii)$ Crossing-over takes place
$(D)$ Zygotene	$(iv)$ Chromosomes align at equatorial plate