PLASMIC a.
of the genetic material of a cell, not integrated with the chromosome and replicating independently of the chromosome, but transferred, like the chromosome, to subsequent generations. In bacteria, plasmids often carry the genes for antibiotic resistance; they are exploited in genetic engineering as the vehicles for int…
PRINCIPAL n.
A leader, chief, or head; one who takes the lead; one who acts independently, or who has controlling authority or influence; as, the principal of a faction, a school, a firm, etc.; -- distinguished from a subordinate, abettor, auxiliary, or assistant.
PROXIMATE a.
I. Watts. (b) That which in ordinary natural sequence produces a specific result, no independent disturbing agencies intervening. -- Proximate principle (Physiol. Chem.), one of a class of bodies existing ready formed in animal and vegetable tissues, and separable by chemical analysis, as albumin, sugar, collagen, fa…