DNA replication is one of the most basic processes that occurs within a cell. Each time a cell divides, the two resulting daughter cells must contain exactly the same genetic information, or DNA, as the parent cell. To accomplish this, each strand of existing DNA acts as a template for replication.
radial. 1  a. Of, relating to, or arranged like rays or radii. b. Radiating from or converging to a common center. c. Having or characterized by parts so arranged or so radiating. 2  Moving or directed along a radius. 3  Anatomy Of, relating to, or near the radius or forearm. 4  Developing symmetrically about a central point.
Radial symmetry means (biologically) that the animal structures are situated in a radial or circular pattern around a center point with nonexistence of sides, like right or left.~ describes an organ ism that can be divided in any longitudinal plane to give two approximately identical halves.haracter izing a body shaped like a pie or barrel, with many equal parts radiating outward like the spokes of a wheel; present in cnidarians and echinoderms. radiation ... radial symmetry.