That requires adding not just one gene to the yeast, like to make insulin, but numerous genes in order to create an entire chemical production process within the cell. (nytimes.com)
While numerous genes associated with human epilepsy have already been found, this is the first gene associated with canine epilepsy to be discovered. (lowchensaustralia.com)
While the baby was breastfeeding, the bacteria in his stomach contained numerous genes useful for breaking down milk sugars. (newscientist.com)