News tagged with dna molecules

DNA tug of war

A mathematical model created by Aalto University (Finland) researcher Timo Ikonen explains for the first time how the DNA chains in our genome are translocated through nanopores that are only a couple of nanometres thick.

May 11, 2012
not rated yet 1

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

To get the full story you need to know the motifs

Genome sequencing alone provides researchers with only limited information on the organism works because it neither reveals how the system is regulated nor does it indicate the role of each specific DNA sequence or RNA transcript. ...

Mar 26, 2012
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New type of extra-chromosomal DNA discovered

(PhysOrg.com) -- A team of scientists from the University of Virginia and University of North Carolina in the US have discovered a previously unidentified type of small circular DNA molecule occurring outside ...

Mar 09, 2012 report
4.8 / 5 (23) 9 | 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