News tagged with dna molecules

DNA prefers to dive head first into nanopores

(Phys.org)—In the 1960s, Nobel laureate Pierre-Gilles de Gennes postulated that someday researchers could test his theories of polymer networks by observing single molecules. Researchers at Brown observed ...

Jan 08, 2013
4.3 / 5 (3) 0 | with audio podcast

A foot in the door to genetic information

In the cell nucleus, DNA wraps around what are called histone proteins, forming regularly spaced spherical bodies called nucleosomes. Thus, large portions of the genetic material are inaccessible to the gene reading machinery. ...

Mar 07, 2012
4.3 / 5 (3) 0 | with audio podcast

700,000 year old horse genome sequenced

It is nothing short of a world record in DNA research that scientists at the Centre for GeoGenetics at the Natural History Museum of Denmark (University of Copenhagen) have hit. They have sequenced the so ...

Jun 26, 2013
5 / 5 (5) 0 | with audio podcast

Training your robot the PaR-PaR way

Teaching a robot a new trick is a challenge. You can't reward it with treats and it doesn't respond to approval or disappointment in your voice. For researchers in the biological sciences, however, the future ...

Oct 23, 2012
4.3 / 5 (4) 1 | with audio podcast

Study reveals key step in protein synthesis

Scientists at the University of California, Santa Cruz, have trapped the ribosome, a protein-building molecular machine essential to all life, in a key transitional state that has long eluded researchers. Now, for the first ...

Jun 27, 2013
5 / 5 (4) 0 | with audio podcast

Fly study finds two new drivers of RNA editing

RNA editing gives organisms a way to adapt the instructions that their DNA provides for making proteins. Few people would have described RNA editing as a simple process, but a new paper in Nature Communications demons ...

Aug 01, 2013
5 / 5 (3) 0 | with audio podcast

Metabolic errors can spell doom for DNA

Many critical cell functions depend on a class of molecules called purines, which form half of the building blocks of DNA and RNA, and are a major component of the chemicals that store a cell’s energy. ...

Jan 31, 2012
not rated yet 0 | with audio podcast