A hidden connection delivers energy directly from mitochondria to the nucleus, helping cells mature and embryos develop ...

For decades, biologists assumed a cell's energy simply diffused to wherever it was needed. It turns out the most important ...

Back 2.8 billion years ago, while Earth shifted its plates to make new continents and violent volcanoes produced new crust, life crafted a novel invention of its own. 1,2 At first, the nucleus was ...

Except for bones, hair, tooth enamel, and nails, our bodies consist of cells, the building blocks of living tissue. A typical adult has 26 to 36 trillion (that’s a “tr”) cells. A cell is a very tiny ...

Normal metabolic activity produces reactive oxygen species (ROS) that, if not eliminated, can damage cellular components. As a result, ROS from overactive mitochondria are frequently cited as a source ...

Mitochondria release segments of mitochondrial DNA that can travel through pores of the nucleus and integrate into a cell's chromosomes (where the insertions are called NUMTs, for nuclear ...

Scientists have found DNA in the nucleus of brain cells, where it shouldn’t be. Bits of genes that typically reside in mitochondria insert themselves at unexpectedly high rates into brain cells’ ...

Cells are the smallest unit of life and the building blocks for all organisms. Each component of a cell has its own function. Animal and plant cells differ and they have similarities. Nucleus, cell ...

Over a billion years ago, a single-celled archaean engulfed an overachieving bacterium. The bacterium didn’t perish but instead struck an agreement with its host. For shelter, the bacterium would pay ...

Mitochondria are essential for generating energy that fuels cells and helps them function. Mitochondrial defects, however, are associated with the development of diseases such as type 2 diabetes.