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(D) The cell cycle is divided into two main phases: Interphase and $M$-phase (Mitosis).Interphase consists of three sub-phases: $G_1$, $S$, and $G_2$.

Vedclass · Accepted Answer

$(1-c), (2-a), (3-d), (4-b)$

Vedclass · Answer

(D) The cell cycle is divided into two main phases: Interphase and $M$-phase (Mitosis).Interphase consists of three sub-phases: $G_1$, $S$, and $G_2$.$(1)$ $G_1$-phase is the interval between mitosis ($M$-phase) and $DNA$ replication ($S$-phase). Thus, $(1-c)$.$(2)$ $G_2$-phase is the interval between $DNA$ replication ($S$-phase) and mitosis ($M$-phase). Thus, $(2-a)$.$(3)$ $S$-phase is the phase where $DNA$ synthesis occurs. It is the period between $G_1$ and $G_2$. In the context of the options provided, $(3-d)$ fits as it represents the period within interphase.$(4)$ $M$-phase is the period of cell division, which occurs between $G_2$ and $G_1$ (the next cycle). Thus, $(4-b)$.Therefore, the correct matching is $(1-c), (2-a), (3-d), (4-b)$.

Column-$I$	Column-$II$
$(1)$ $G_1$-phase	$(a)$ Interval between $DNA$ replication and $M$-phase
$(2)$ $G_2$-phase	$(b)$ Interval between $G_2$ and $G_1$ phase
$(3)$ $S$-phase	$(c)$ Interval between $M$ and $DNA$ replication
$(4)$ $M$-phase	$(d)$ Interval between the beginning and end of interphase

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

Similar Questions

Cell division occurs in plants and animals respectively as:

Analyse the events during every stage of the cell cycle and notice how the following two parameters change:
$(i)$ Number of chromosomes $(N)$ per cell
$(ii)$ Amount of $DNA$ content $(C)$ per cell

In which type of cell division does spindle formation not occur?

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