Tracking every blood cell back to its original stem cell requires genetically modifying DNA. In humans ... that researchers can "scan" or read to chart each cell's position in the family tree.

Cell-free gene synthesis eliminates the need for bacterial cloning, which has been the conventional method for high-quality gene-length DNA production. Cloning involves lengthy culturing steps, is ...

Zooming in on individual cells The body has various mechanisms to repair DNA, but the process can differ from cell to cell. This makes it important to study DNA repair in individual cells.

Each cell in a plant, animal, or person contains millions, or even billions, of DNA base pairs—molecules ... In order to chart human migration patterns, investigate animal domestication, and ...

As a graduate student in 2000, he spent six months trying to build a cell that could periodically alter a tiny bit of its own DNA. After six months of failure, he abandoned the project.

"Mitochondrial DNA is essential for cell function," Dr Hahn said. "But as we age it mutates, contributing to diseases like dementia, cancer and diabetes. "Our team identified 2 enzymes that ...

They also tend to use heat to separate strands, heating the DNA to more than 150°F, a temperature a cell would never naturally reach. By contrast, in a living cell DNA lives in a very crowded ...