For a cell,n rightarrow 2n (P) and 2n rightar | vedclass

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(B) In biological cycles,the transition from a haploid state $(n)$ to a diploid state $(2n)$ is achieved through the process of fertilization $(P)$,wh

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Fertilization,Meiosis

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(B) In biological cycles,the transition from a haploid state $(n)$ to a diploid state $(2n)$ is achieved through the process of fertilization $(P)$,where two gametes fuse to form a zygote.Conversely,the transition from a diploid state $(2n)$ to a haploid state $(n)$ is achieved through the process of meiosis $(Q)$,which reduces the chromosome number by half during gamete formation.Therefore,$P$ is fertilization and $Q$ is meiosis.

List $I$	List $II$
$A$. $M$ Phase	$I$. Proteins are synthesized
$B$. $G_2$ Phase	$II$. Inactive phase
$C$. Quiescent stage $(G_0)$	$III$. Interval between mitosis and initiation of $DNA$ replication
$D$. $G_1$ Phase	$IV$. Equational division

For a cell,$n \rightarrow 2n$ $(P)$ and $2n \rightarrow n$ $(Q)$. What are $P$ and $Q$?

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