Yards of DNA are packed into cells by wrapping the DNA around proteins called nucleosomes. But that tight packing makes it hard for the cell's machinery to get at the DNA code to read, copy or ...

Take a drop of saliva from the top of your tongue or between your cheek and gums, place it between your thumb and forefinger, and then pull your fingers slowly apart to a distance of about a ...

During apoptosis, cells can disassemble into smaller membrane-bound extracellular vesicles that promote apoptotic cell clearance and mediate intercellular communication. Previous work by Poon and ...