Researchers in China created a pair of monkeys with specific genetic mutations. The scientists used a new method of DNA engineering known as CRISPR. CRISPR allows scientists to modify fertilized eggs. This innovation has great implications for the field of biomedicine. The ability to alter DNA at specific locations on chromosomes makes it easier to study diseases. Researchers at MIT have expressed interest in studying brain disorders like autism and Alzheimer’s disease. CRISPR has the potential to aid researchers studying such ailments, allowing them to identify what genetic mutations actually cause the disorders.