WEBVTT

1
00:00:00.000 --> 00:00:06.000
A shaded double helix rotates through a deep violet scene. On-screen text: Two linked strands.. Narration: DNA has two linked strands in a double helix. Original stereo score.

2
00:00:06.000 --> 00:00:12.000
Colored rungs become visible as the camera moves around the backbone. On-screen text: Pairs hold the connection.. Narration: Bases pair across the two strands. Original stereo score.

3
00:00:12.000 --> 00:00:18.000
The extended helix opens into a closer view of the ordered rungs. On-screen text: Order carries information.. Narration: Their sequence carries biological information. Original stereo score.

4
00:00:18.000 --> 00:00:24.000
The camera returns to the continuous twisting arrangement. On-screen text: A shape with a story.. Narration: Structure makes the idea easier to see. Original stereo score.