DNA is a double helix.”This is a fact so famous that it now appears in middle and high school textbooks. However, when you learn the details of how this shape was discovered, you realize it is not a ...

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New close-up images of the proteins that copy DNA inside the nucleus of a cell have led a team of scientists from the U.S. Department of Energy's Brookhaven National Laboratory, Stony Brook University ...

Researchers at the MRC Laboratory of Medical Sciences (LMS) and collaborators have uncovered one of the earliest steps in DNA replication: the moment a cell first opens its DNA to begin making a copy ...

For almost 60 years, scientists have tried to understand why DNA doesn't replicate wildly and uncontrollably every time a cell divides, which happens constantly. Without this process, we would die.

A molecular illustration of the crowded interior and cell envelope of Escherichia coli. (David S. Goodsell, The Scripps Research Institute) To replicate information, life usually has fairly ...

Johns Hopkins Kimmel Cancer Center scientists report data from a new study providing evidence that random, unpredictable DNA copying "mistakes" account for nearly two-thirds of the mutations that ...