NewTutra Lab · Biology

DNA Replication

Open the helix. Copy both strands. Finish two faithful DNA molecules.

Step 1 / 5Accuracy 100%Score 0
Phase 1Open the helix
Phase 2Add primers
Phase 3Build strands
Phase 4Join fragments
Fork opening · Step 1

Separate the parental strands

At the fork
Interactive DNA replication forkA replication fork showing parental DNA, leading and lagging strand synthesis and the enzymes currently active.
Choose the enzyme that opens the double helix.Hydrogen bonds between complementary bases must be disrupted so each parental strand can act as a template.

Turn this replication run into practice.

The worksheet will focus on enzyme roles, strand direction and any steps that caused difficulty.