Hypernyms (to doodle is one way to...): draw (represent by making a drawing of, as with a pencil, chalk, etc. on a surface). Doodle entails doing...: delineate; describe; draw; line; trace (make a mark or lines on a surface).
DNA polymerases can only extend a DNA strand in a 5â² to 3â² direction, different mechanisms are used to copy the antiparallel strands of the double helix. In this way, the base on the old strand dictates which base appears on the new strand.
-DNA polymerase can only catalyze the growth of the DNA chain in one direction: it can only add new subunits to the 3' end of the chain-as a result, a new DNA chain can be synthesized in the 5' to 3' direction