Visit www.DNAi.org for a comprehensive picture of DNA's structure and the history of it's finding
There are sooo many models available for describing DNA replication - find one that makes sense to YOU!
Look for animations through google. UTube will also have some good ones. Share ones you find in "comments".
As you watch animations, ask: 1. What enzymes are invovled? How are the leading and lagging strands created?
DNA replication: Animation at - http://www.johnkyrk.com/DNAreplication.html