Some dividing cells exit the cell cycle and enter a vegetative inactive stage. This is called the quiescent stage $(G_{0})$. This process occurs at the end of:

In a somatic cell cycle:

Which of the following events occurs during $G_{1}$-phase?

Chromatin fibres duplication,Genetic material-$4C$,Histone protein synthesis,Membranous organelle duplication,$DNA$ replication,centriole duplication. How many of the above features are associated with the synthesis $(S)$ phase of the cell cycle?

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

What occurs during the synthesis phase ($S$ phase) of the cell cycle?