If the number of chromosomes in $G_1$ phase of a cell is $18,$ then the number of chromosomes after S phase of the cell would be

Interphase,

A. Is a biosynthetic phase in which the cell duplicates its organelles.

B. Constitutes more than 95% duration of the cell cycle.

C. Is the phase between two successive M-phases.

Study the given diagrammatic view of the cell cycle indicating the formation of two cells from one cell and select the most appropriate option as an answer.

State true$\left(\mathrm{T}\right)$or False $\left(\mathrm{F}\right)$ for the following statements and choose the correct option:

A. Cell growth in terms of cytoplasmic increase is a continuous process.

B. The M-phase of human lasts for about an hour.

C. Due to absence of cell growth, the interphase is called resting phase.

D. The cells do not divide further exist $G_1$-phase to enter an inactive stage.

Which of the following options is the correctly matched-pairs?

Consider the following statements and select the correct option A, B and C.

(i) The differentiation of the cells occurs in __A__stage of the cell cycle.

(ii) Invisible phase of cell cycle is __B__ phase.

(iii) Proteins for spindle fibre formation are synthesized in __C__ phase.