The COVID-19 pandemic gave us tremendous perspective on how wildly symptoms and outcomes can vary between patients experiencing the same infection. How can two people infected by the same pathogen ...

Scientists have long known that the DNA code in genes is not the only way to pass genetic traits from parents to offspring. "Epigenetic" marks—chemical modifications to DNA that don't change the DNA ...

A new study suggests that the long-standing Mendelian view of genetics has some blind spots.

Genetic engineering is moving from the lab bench into clinics, farms, and even family planning decisions, promising to change how we prevent disease, age, and define human potential. The same tools ...