The keys are based on contrasting characters generally in a pair called

The primary source for the study of taxonomy is:

How are the treatises prepared by $Bentham$ and $Hooker$ useful in the field of botany?

Which of the following is a botanical garden located in Gujarat?

Statement $P$: In botanical gardens,new species are developed through processes like grafting,tissue culture,cloning,and hybridization.
Statement $Q$: Botanical gardens provide necessary information regarding the identification of collected,authenticated,and newly discovered plant specimens.

Which of the following places provides facilities for students to conduct taxonomic research?