Crossing over takes place between

When the number of chromosomes is already reduced to half in the first reductional division of meiosis,what is the necessity of the second meiotic division?

$A -$ Meiosis is called the reduction division.
$R -$ It reduces the chromosome number by half while making the gametes.

Write a brief note on the following:
$(a)$ Synaptonemal complex
$(b)$ Metaphase plate

During the meiotic division,the:

Match List-$I$ with List-$II$ :

List-$I$ (Sub Phases of Prophase-$I$)	List-$II$
$A$. Diakinesis	$I$. Synaptonemal complex formation
$B$. Pachytene	$II$. Completion of terminalisation of chiasmata
$C$. Zygotene	$III$. Chromosomes look like thin threads
$D$. Leptotene	$IV$. Appearance of recombination nodules

Choose the correct answer from the options given below: