What'll it be—muscle, liver or bone? No, it's not a sales pitch. It's your opportunity to manipulate the building blocks of life. By adding "factors" to this virtual Petri dish, you can coax embryonic stem cells into becoming the specialized cells that make up everything from blood to brains. So pull up a chair and try out Children's virtual stem cell lab. You don't need a lab coat or gloves. Genes ar just fine
Watch a movie of tumor cells repelling blood vassel cells. Explore a gallery of beatiful microscopy images. Learn about proteomics, the hot new science that picks up where the Human Genome project left off. All of this and much more is just a click away.