Mutations are so common, not having any would be the anomaly.
mutants
A Cut Above
When Dr. Gaurav Varshney arrived at OMRF in late 2016, the first things he purchased for his new research program were fish tanks. Lots of them. During a seven-year post-doctoral fellowship at the National Institutes of Health in Bethesda, Md., Varshney developed an expertise in studying developmental biology in paperclip-sized aquatic creatures known as zebrafish. […]