biochemical method Method based on the utilisation of a biochemical mechanism, e.g. any chemical reaction or series of reactions, usually enzyme catalysed, which produces a given physiological effect in a living organism
recombinant DNA technology Techniques and practical applications associated with recombinant DNA (deoxyribonucleic acid artificially introduced into a cell that alters the genotype and phenotype of the cell and is replicated along with the natural DNA)