An explant is

Which of the following hormones is used to induce callus formation from shoot tips?

Select the correct match for $X$ and $Y$:

Column $X$	Column $Y$
$(1)$ Callus culture	$(P)$ Hybrid embryo rescue
$(2)$ Suspension culture	$(Q)$ Differentiated mass
$(3)$ Embryo culture	$(R)$ Undifferentiated mass

In which of the following methods can plantlets be developed from seeds that remain dormant for a long time?

Which processes are used to develop new species in a botanical garden?

Identify the correct statements from the following:
$(i)$ Embryo culture can be used to develop seedlings from seeds that remain dormant for a long time.
$(ii)$ In embryo culture,the embryo is excised and grown in a culture medium.
$(iii)$ Bean seeds do not contain stored food.
$(iv)$ Rapid clonal propagation is an application of suspension culture.