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Question

(A) $A.$ Metaphase: Spindle fibres attach to the kinetochores of chromosomes. Chromosomes are moved to the spindle equator and get aligned along the m

Vedclass · Accepted Answer

$A-$Metaphase; $B-$Telophase; $C-$Interphase

Vedclass · Answer

(A) $A.$ Metaphase: Spindle fibres attach to the kinetochores of chromosomes. Chromosomes are moved to the spindle equator and get aligned along the metaphase plate through spindle fibres of both poles.$B.$ Telophase: Chromosomes cluster at opposite spindle poles and their identity is lost as discrete elements. The nuclear envelope assembles around the chromosome clusters. The nucleolus,Golgi complex,and $ER$ reform.$C.$ Interphase: This is the duration which is variable depending on the function of the cell. Just before nuclear division,the $DNA$ of the chromosome replicates,thus it becomes doubled. During this phase,chromosome material is in the form of very loosely coiled threads called chromatin.

List-$I$	List-$II$
$(a)$ $S$ phase	$(i)$ Proteins are synthesized
$(b)$ $G_2$ phase	$(ii)$ Inactive phase
$(c)$ Quiescent stage	$(iii)$ Interval between mitosis and initiation of $DNA$ replication
$(d)$ $G_1$ phase	$(iv)$ $DNA$ replication

Observe the diagrams carefully and identify the different stages of mitosis $(A-C)$ by choosing the appropriate options given below.

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