Step 1 – The double helix needs to unwind before replication can begin
{"Image DocumentName": "Step 1 \u2013 The double helix needs to unwind before replication can begin", "Image ImageDescription": "Accomplished by enzymes called DNA helicases which open the double helix by breaking the hydrogen bonds between the two strands.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}