Synapsis occurs between:

In which of the following,each chromosome is seen to consist of a single chromatid?

At which stage do homologous chromosomes appear as bivalents due to independent separation?

The following image shows certain events occurring during a specific stage of cell division. Which stage is this?

$A$ tetrad consists of

The various stages of meiosis are given in Column-$I$. Match them with the characteristics of the various stages of meiosis 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-$I$	$ii$. Terminalization of chiasmata
$C$. Diakinesis	$iii$. Crossing over occurs
$D$. Zygotene	$iv$. Alignment at the equatorial plate