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 ...

Study results regarding the clinical spectrum and inheritance pattern of GDF2 pathogenic variants suggest incomplete penetrance and/or variability of expressivity with a semi-dominant pattern of ...

IN 1865, an Austrian monk called Gregor Mendel, working to understand hybridisation, uncovered exquisitely simple and reliable patterns of inheritance in varieties of garden pea. In 1900, the patterns ...