Explanation

The last substage of interphase is $G_{2}$-phase in $G_{2}$-phase, cell organelles increases in number and both cell and nucleus grows in size $G_{1}$-phase, is the first stage of interphase during which cell organelles do not increase in number. Cell grows in size but the growth of nucleus is little. It synthesizes RNAs, proteins and other biochemical for cell growth and subsequent replication of DNA