News tagged with dna molecules

Channeling our ion past

To understand how the first cells transported ions across their membranes, researchers are studying simple channels used by fungi to kill off bacteria.

Jun 07, 2012
5 / 5 (1) 2 | with audio podcast

Nanofluidics sorts DNA for cancer research

(Phys.org) -- Cornell nanotechnology researchers have devised a new tool to study epigenetic changes in DNA that can cause cancer and other diseases: a nanoscale fluidic device that sorts and collects DNA, ...

May 24, 2012
5 / 5 (2) 0 | with audio podcast

Researchers use light to switch on gene expression

Imagine being able to control genetic expression by flipping a light switch. Researchers at North Carolina State University are using light-activated molecules to turn gene expression on and off. Their method enables greater ...

May 10, 2012
5 / 5 (2) 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