The faces here, which look a bit like video game avatars, are actually portraits drawn from DNA.

Each rendering was created by plugging an individual genetic profile into a predictive tool created by Mark D. Shriver, a professor of anthropology and genetics at Penn State University. Dr. Shriver and his colleagues have studied the ways that genes influence facial development.

Their software yields an image in a matter of minutes, rapidly drawing connections beween genetic markers and points on the face. In less time than it takes to make a cup of coffee, a sketch emerges inferred solely from DNA.

How accurate or useful are these predictions? That is something that Dr. Shriver is still researching – and that experts are still debating. Andrew Pollack writes about the issues in an article on genetic sleuthing in Science Times.