Which of the following cells completes a cell cycle in $90$ minutes?

The centriole undergoes duplication during:

What happens during the $S$ phase of the cell cycle?

What is the correct sequence of the various phases of the cell cycle?

Which of the following statements are correct for $G_{1}$-phase?
$I.$ It is the last substage of interphase
$II.$ Cell organelles do not increase in number
$III.$ Cell grows in size and content both
$IV.$ It synthesizes $RNAs$,proteins and other biochemicals for cell growth and subsequent replication of $DNA$
Choose the correct option

The centrosome duplicates during the