In which stage of Prophase-$I$ do chromosomes condense and appear as thin,thread-like structures?

Which of the following processes is associated only with meiosis?

Find out the wrong statement.

$S -$ 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.

What is not seen during mitosis in somatic cells?

Dissolution of the synaptonemal complex occurs during