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.
USing DNA polymerase which 'reads' along the strand in the 3' to 5' direction on the strand, producing a replication strand in the 5' to 3' direction. The opposite strand is called the lagging strand, and this is slightly more complicated. DNA polymerase cannot read in the 5' to 3' direction on the template strand.