1 2 3 4 5 6 Replication fork · 1/6 Unzip the parent DNA and read it as two copies In DNA replication, each of the two strands of the parent DNA becomes a template. First see the replication fork, leading strand, lagging strand, and proofreading site as a single map.
Basics: OpenStax Biology 2e: Basics of DNA Replication .
Looking only at the process timeline, grasp the order: unzip, place, extend, join, fix.
Using the parent strands as templates, the whole picture of two new strands appears.
Replication Story Overview
ALL Overview Show the replication fork, leading, lagging, and proofreading site together UNZIP Unzip Helicase / Unzip PRIME Place a foothold Primase / Place a foothold 5->3 Elongate DNA polymerase / Extend from 5′ to 3′ OKA Join the fragments Polymerase + ligase / Join the fragments CHECK Proofread Proofreading polymerase / Fix it
See the whole flow as the parent DNA unzips and separates into two new DNA copies.
Discovery check In DNA replication, what role do the two strands of the parent DNA play?
Each becomes a template for a new strand Only one is discarded entirely They turn into membrane instead of enzymes
Answer the check to continue
Could you explain the core structure of DNA Replication: Unzipping the Double Helix to someone else? Still fuzzy Mostly clear I could explain it I could apply it
Your mental model is forming. Try the checkpoints and connect this space to another system.
What did you notice? What do you want to explore next? Beginner · 24min
