For the first time, they showed that the “proofreading” portion of the DNA replicating enzyme polymerase epsilon ensured safe termination of replication at damaged portions of the DNA strand ...

The DNA packed inside every human cell contains instructions for life, written in billions of letters of genetic code. Every time a cell divides, the complete code, divided among 46 chromosomes ...

The human genome consists of 3 billion base pairs, and when a cell divides, it takes about seven hours to complete making a copy of its DNA. That's almost 120,000 base pairs per second. At that ...