Holly has a degree in Medical Biochemistry from the University of Leicester. Her scientific interests include genomics, personalized medicine, and bioethics.View full profile Holly has a degree in ...

Researchers have discovered how orange cats got their coats — and why so many of them are male. The coat color comes from a genetic mutation on the X chromosome of orange, calico and tortoiseshell ...

Cats are arguably perfect. At least, evidence suggests that felines, which have evolved with minimal variation and maximal efficiency, have reached the “perfect” genetic form. “Everything you need to ...

A major evolutionary theory says most genetic changes don’t really matter, but new evidence suggests that’s not true. Researchers found that helpful mutations happen surprisingly often. The twist is ...

X-chromosome inactivation varies across different areas of brains. Here, fluorescent imaging data from a mouse reveal where the father’s X chromosome is most active (white) and least active (blue). A ...

Experiments on an ultra-rare genetic mutation that causes neurodegeneration in children have helped uncover a new mechanism ...

A genetic mutation passed from mother to children in families affected by schizophrenia has now been shown to completely ...

Santhosh Girirajan receives funding from the National Institutes of Health. Genetic inheritance may sound straightforward: One gene causes one trait or a specific illness. When doctors use genetics, ...