The genes in mitochondria, which are the powerhouses in human cells, can cause fatal inherited disease. But replacing the bad genes may cause other health problems.
Getty Images/Science Photo Library
Yes, getting exercise and eating right can significantly cut your risk of developing heart disease, a study finds, even if you inherited genes that predispose you to the illness.
The condition known as hypertrophic cardiomyopathy, or HCM, is inherited and can be a killer. But some of the genetic mutations once thought linked to the illness are actually harmless, geneticists say.
Afton Almaraz/Getty Images
Genetically modified mosquitoes are released in Piracicaba, Brazil, in an effort to combat Zika virus. These mosquitoes were modified using conventional techniques.
Victor Moriyama/Getty Images