How did life make the leap from single cells to coordinated, multicellular organisms? And how do genetically identical cells ...

National Institutes of Health (NIH) researchers have developed a digital replica of crucial eye cells, providing a new tool for studying how the cells organize themselves when they are healthy and ...

Before an embryo can use its own genes, it relies on materials that have been packed into the egg. This is a precarious phase. In mammals, the fertilized egg divides several times before activating ...

Cytotoxic T lymphocytes are the body's specialized "killer" cells, precisely eliminating infected or cancerous cells. Their action relies on a specialized exchange zone called the "immune synapse," ...