What is the pairing of homologous chromosomes during the zygotene stage called?

Identify the given figure.

What is Meiosis? Give the key features of it and explain them.

$S -$ Statement: In the pachytene substage,each group of chromosomes appears as a bivalent.
$R -$ Reason: During prophase in plant cells,the centriole units arranged at the two poles form spindle fibers.

Synaptonemal complex is formed during

Meiosis occurs in which of the following cells?