“In a clinical setting, when suspicion of a genetic condition is high, whole genes are often tested. These are genes where we understand how changes in DNA cause cellular changes that can cause disease. Additionally, clinical evaluation includes genetic counseling, which is often key to understanding the results. In contrast, direct-to-consumer genetic test results are often just statistical linkages,” he explains in an article by The conversation, Michael Mackley, a researcher at Dalhousie University who investigated the matter.
