Explore a molecular machine, follow a short message and connect amino-acid chains to living systems.
Interactive explorationInspect a real fruit fly reconstruction, choose inherited copies, exchange chromosome segments and test why a probability does not promise an exact family. Follow linked markers from parent to gamete to offspring.
Interactive explorationTake apart a human ribosome, follow a message three letters at a time, then change a DNA base and discover what the peptide does.
Interactive explorationExplore how the immune system responds to an infection. Follow immune cells from skin to lymph node, inspect an antibody structure, and discover what immune memory leaves ready.
Interactive explorationOpen a protein-vaccine example, build a response with traceable cell lineages, and compare later encounters. Then follow the separate route from vaccine mRNA to a protein.
Interactive explorationNudge a membrane, discover when a spike appears, test its recovery, and cross a chemical synapse. Then inspect a real potassium-channel structure.
Interactive explorationOpen a leaf, explore a chloroplast, and supply a tiny carbon-building recipe. Discover what comes from air, what comes from water, and what light contributes.
Move a load closer to an elbow on a transparent teaching arm. See the force change, then explore how muscles can work without visible movement.
Interactive explorationFollow a meal through the gut, then zoom into its lining. Choose starch, protein or long-chain fat and discover why their next routes differ.
Take these steps at your own pace. Your place is not saved as account progress or scored.