The points at which crossing over has taken place between homologous chromosomes are called

Match Column-$I$ with Column-$II$ and select the correct option.
Column-$I$ | Column-$II$
$(a)$ Pachytene | $(i)$ Synizesis
$(b)$ Zygotene | $(ii)$ Chiasmata
$(c)$ Diplotene | $(iii)$ Terminalization
$(d)$ Leptotene | $(iv)$ Crossing over
$(e)$ Diakinesis | $(v)$ Synapsis

In the pachytene stage of meiosis,the chromosomes appear:

What is observed in chromosomes during the pachytene stage?

In which phase of meiosis are the following formed? Choose the answers from the hint points given below.
$(a)$ Synaptonemal complex
$(b)$ Recombination nodules
$(c)$ Appearance / activation of enzyme recombinase
$(d)$ Termination of chiasmata
$(e)$ Interkinesis
$(f)$ Formation of dyad of cells

The longest phase of meiosis is