Scientists found that some inherited traits can bypass the traditional rules of genetics, revealing a surprising new layer of ...

When we think about genetic inheritance, we usually leap to DNA, the four-letter code containing the instructions for building a living organism. Scientists know that DNA encodes everything from hair ...

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 ...

DNA transcription is the vital first step needed for switching on our genes. For a gene to be switched on, it must be acted upon by an enzyme called RNA polymerase. This is a molecular machine which ...

Heritability measures how much of the differences in biological traits within a population are influenced by genetic variation among individuals. These differences can arise from both genetic and ...