In contrast, single-end joining of PCR-derived DNA fragments digested on one end only should proceed efficiently, as the nondigested fragment ends will be unligatable and therefore unable to form ...

Researchers led by Ludwig San Diego Member Don Cleveland and Peter Campbell of the Sanger Center have solved the mystery of how free-floating circular DNA fragments, which are almost exclusively ...

"We hope to refine predictions of DNA survival by more accurately mapping how DNA fragments decay across the globe." The study was published Wednesday in the journal Proceedings of the Royal ...

DNA that was frozen for 2 million years has been sequenced The ancient DNA fragments come from a Greenland ecosystem where mastodons roamed among flowering plants.

Digging up DNA after tens of millennia By pushing the limits of DNA extraction and gene reconstruction, scientists are finding human genomes in the very soil our ancestors once walked ...

Cancer doctor and researcher Siddhartha Mukherjee describes how surprised scientists were to discover DNA drifting freely in blood plasma almost 80 years ago.