(NewsNation) — A judge agreed Wednesday to allow new DNA testing on one of the 14 pieces of evidence in the ... The judge also denied testing a strand of twine found around the couple’s ...

This means that one strand's sugar-phosphate chain runs in ... one of these cells were arranged into a single straight piece, that DNA would be nearly two meters long! So, how can this much ...

Researchers have revealed new details about the CRISPR-Cas5-HNH/Cascade complex, a variant of the type I-E CRISPR-Cas system, ...

RecA binds to single-stranded DNA, searches along a separate piece of double stranded DNA for the cognate sequence, and then promotes DNA strand invasion. 11 After testing various proteins in the RecA ...

DSBs can be repaired using several different mechanisms. Both ends can be simply rejoined with little or no further processing (nonhomologous end joining, or NHEJ) or can be repaired using ...

The piece of plastic that caused the contamination is called a plate, but it’s more like a brick. It’s rectangular with 96 holes in the shape of tiny pipettes where DNA swabs are inserted for ...

They then combined a single piece of DNA from one virus with another strand from the other virus type. The lactose gene segments of DNA were chemically complementary and combined easily into a ...

The DNA repair and replication pathways converge on a common final step in which the continuity of the repaired DNA strand is restored by DNA ligase, an enzyme that converts nicks into phosphodiester ...

DNA replication is the process by which the DNA molecule makes an exact copy of itself during cell division. The double helix unwinds, and each strand serves as a template for the synthesis of a new ...

By Balambal Suryanarayanan CRISPR-Cas9 is a repurposed gene editing tool that allows scientists to cut, replace, and insert pieces of DNA in precise regions along the strand. Courtesy of NIH Image ...

If you've looked at the activity (or even the text version of the activity), you know how a section of DNA instructs a cell ... can be working on a single strand of mRNA at once.

Cas9, the first Cas protein repurposed for cutting DNA, introduces double-strand breaks that recruit DNA repair machinery. Despite its successes, the CRISPR-Cas9 system has several limitations, ...