Analogy type question:
$(1)$ Zygotene : Synapsis :: Pachytene : .......
$(2)$ Prophase-$I$ : Diakinesis :: Interval between two successive meiotic divisions : .......

(A) $(1)$ During the Zygotene stage of Prophase-$I$,homologous chromosomes pair up,a process known as Synapsis. Similarly,during the Pachytene stage,the phenomenon of Crossing Over occurs between non-sister chromatids of homologous chromosomes.
$(2)$ Diakinesis is the final stage of Prophase-$I$ in meiosis. The interval or phase between two successive meiotic divisions (Meiosis-$I$ and Meiosis-$II$) is known as Interkinesis.