In which of the following are fernery,conservatory,artificial reservoir,and orchidarium developed?

Arrange the following steps for the preservation of plant specimens in a herbarium in the correct sequential order: $P$: Mounting,$Q$: Drying,$R$: Labeling,$S$: Poisoning,$T$: Collection of plant specimens,$U$: Pressing.

What can be obtained through research in botanical gardens?

Which of the following locations do not function as a gene bank?

Couplet in taxonomic key means $..........$

Assertion $(S)$: Rare genes can be preserved in botanical gardens.
Reason $(R)$: Gene banks are developed in botanical gardens.
$(A)$ Both $S$ and $R$ are true,and $R$ is the correct explanation of $S$.
$(B)$ Both $S$ and $R$ are true,but $R$ is not the correct explanation of $S$.
$(C)$ $S$ is true and $R$ is false.
$(D)$ $S$ is false and $R$ is true.