In which method do cell clusters differentiate to form small,specialized cell groups?

Apical meristem is specially used for the production of . . . . . . in tissue culture.

Name the culture method that utilizes a rotary shaker.

What is used as a culture medium for callus?

Reproducing new plants by cells instead of seeds is known as

Identify the incorrect statements from the following:
$(i)$ Callus is obtained in $2$ to $3$ weeks.
$(ii)$ Suspension culture does not show faster growth compared to callus culture.
$(iii)$ Orchid seeds do not contain stored food.
$(iv)$ $2,4-D$ is used only in callus culture.