The faint blobs above the bright blobs are axonal growth cones, structures that guide axons to their targets in the nervous system. When src-1 is gone (pictured above), the growth cones are large and cannot focus where they are going. Credit: Snehal Mahadik Many people are familiar with oncogenes—genes long known to be involved in cancers in humans, such as the gene Src. What’s less widely understood is that oncogenes didn’t evolve just to cause cancer in species, but rather to control events of normal growth and differentiation. “As an Read More