Cell and DNA

The desktop simulations, compiled for the browser. 2D pages walk one step at a time. 3D pages keep the camera orbit — drag to turn, scroll to zoom. On a phone, the buttons along the bottom do the same jobs as the keys. A current Chrome, Edge, or Firefox will run them.

• Cell division — 2D Mitosis and meiosis. Left/Right step, Enter replay, Space autoplay, Up/Down speed, M switches mode.
• Cell division — 3D Chromosome-level mitosis and meiosis. Space pause, Left/Right phase, M switches mode, I structures, drag and scroll the camera.
• DNA replication — 2D One fork, step by step. Left/Right step, Enter replay, Space autoplay, Up/Down speed.
• DNA replication — 3D A single fork in space. Space pause, Left/Right jumps 3 seconds, F follows the fork, L legend, I structures.