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.
On the leading strand, DNA synthesis can proceed continuously in the 5' to 3' direction in the same direction as the movement of the replication fork. On the lagging strand, multiple RNA primers must be laid down and the new DNA is made in many short pieces that are later joined.