News tagged with dna molecules

Random walks on DNA

Scientists have revealed how a bacterial enzyme has evolved an energy-efficient method to move long distances along DNA. The findings, published in Science, present further insight into the coupling of chemical and mechan ...

Apr 19, 2013
4.3 / 5 (3) 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

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

New calculations solve an old problem with DNA

The normal (B-form) DNA will switch to left-handed DNA when it is physically twisted, or when a lot of salt is added to the solution. Researchers at the University of Luxembourg were able to accurately calculate for the ...

Dec 21, 2012
5 / 5 (2) 0

Advance in nanotech gene sequencing technique

(Phys.org) —The allure of personalized medicine has made new, more efficient ways of sequencing genes a top research priority. One promising technique involves reading DNA bases using changes in electrical ...

May 20, 2013
5 / 5 (2) 0 | with audio podcast

A roundabout route to protein production

Proteins are typically encoded by linear strands of messenger RNA (mRNA). These mRNA molecules are translated into polypeptide chains by ribosomes, with each ribosomal read-through of the mRNA generating ...

Jul 12, 2013
5 / 5 (2) 0