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(B) In the cell cycle,the process of mitosis involves several stages. $1$. During $Prophase$,the chromatin condenses into chromosomes,and the mitotic

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Prophase,Telophase

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(B) In the cell cycle,the process of mitosis involves several stages. $1$. During $Prophase$,the chromatin condenses into chromosomes,and the mitotic apparatus,specifically the bipolar spindle,begins to form as the centrosomes move to opposite poles. $2$. During $Telophase$,the chromosomes decondense,the nuclear envelope reforms,and the mitotic spindle apparatus disappears as the cell prepares for cytokinesis. Therefore,the bipolar spindle forms during $Prophase$ and disappears during $Telophase$.

Column $-I$	Column $-II$
$(a)$ Synapsis aligns homologous chromosomes	$(i)$ Anaphase$-I$
$(b)$ Synthesis of tubulin protein	$(ii)$ Zygotene
$(c)$ Action of enzyme recombinase	$(iii)$ $G_2$-phase
$(d)$ Centromeres split and chromatids move towards opposite poles	$(iv)$ Anaphase$-II$
	$(v)$ Pachytene

Choose the correct option for the formation and disappearance of the bipolar spindle in a cell,respectively.

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