Scientists have found that twisting structures in DNA long mistaken for knots are actually something else entirely. Inside cells, DNA gets twisted, copied, and pulled apart. The twists can influence ...

Every time a cell divides, it must copy its DNA with extraordinary precision. But this process is constantly challenged by ...

While most known types of DNA damage are fixed by our cells’ in-house DNA repair mechanisms, some forms of DNA damage evade repair and can persist for many years, new research shows. This means that ...

Scientists at Children's Medical Center Research Institute at UT Southwestern (CRI) have discovered that large pieces of DNA ...

Following a double-strand DNA break, an enzyme called PARP1 helps hold the two strands together —like superglue— and creates a safe zone for other proteins to come repair the damage. We don’t exactly ...

No “sticky ends”? No problem. A new study by NYU chemists finds that DNA tiles can assemble into 3D structures without the sticky cohesion of hydrogen bonding. This finding, published in Nature ...

Long-distance gene control first emerged around 650 to 700 million years ago, significantly earlier than scientists had ...

Important uses for genealogy fall into two broad categories — ethnicity and relationships among individuals. Over the next several months, this series will focus on three key aspects of DNA in ...