Branch that deals with medicinal drugs obtained from plants and other natural resources -

Ans. is 'a' i.e., Pharmacognosy Pharmacognosy : It is the branch the deals with the knowledge peaining to the medicinal drugs obtained from plants and other natural sources. Pharmacogenetics : Study of genetic basis for variability in drug response Pharmacogenomics : Use of genetic information to guide the choice of drug and dose on an individual basis.