She pointed to the other image, this one looking elongated and flattened. “This is a prion variant of human hemoglobin. Same molecular composition, you’ll notice. Different folding. And here’s collagen.” She pointed to another screen, pressing a button on the nearby keyboard and cycling through several more images. James couldn’t tell what was wrong, but judging from Dorothy’s expression, none of these looked right. “Here’s actin, integrin, insulin…” She looked back. “I could go on.”