(Phys.org)—When a cell divides, it passes on genetic information by producing copies of its DNA. Chemists have also learned to copy DNA. In the journal Angewandte Chemie, a German team has now introduced a new copying technique ...
Biochemistry
Aug 31, 2012
0
0
(Phys.org)—Scientists have long wondered why cells lose their ability to repair themselves as they age. New research by scientists at the University of Rochester has uncovered two intriguing clues.
Cell & Microbiology
Aug 31, 2012
0
0
When an invading bacterium or virus starts rummaging through the contents of a cell nucleus, using proteins like tiny hands to rearrange the host's DNA strands, it can alter the host's biological course. The invading proteins ...
General Physics
Aug 30, 2012
0
0
Two opposing teams battle it out to regulate gene expression on the DNA playing field. One, the activators, keeps DNA open to enzymes that transcribe DNA into RNA. Their repressor opponents antagonize that effort by twisting ...
Cell & Microbiology
Aug 26, 2012
0
0
(Phys.org) -- Scientists have cracked a molecular code that may open the way to destroying or correcting defective gene products, such as those that cause genetic disorders in humans.
Cell & Microbiology
Aug 17, 2012
2
0
By way of mechanical stretching, National University of Singapore researchers identify a novel double-stranded DNA structure, thus successfully resolving a 16-year-old scientific debate over the existence of a double-stranded ...
Biotechnology
Aug 3, 2012
0
0
(Phys.org) -- Genetic engineers and genomics researchers should welcome the news from the Lawrence Berkeley National Laboratory (Berkeley Lab) where an international team of scientists has discovered a new and possibly more ...
Cell & Microbiology
Jun 28, 2012
0
2
When stretched out, the genome of a single human cell can reach six feet. To package it all into a tiny nucleus, the DNA strand is tightly wrapped around a core of histone proteins in repeating units—each unit known ...
Cell & Microbiology
Apr 30, 2012
1
0
Development of a new way to make a powerful tool for altering gene sequences should greatly increase the ability of researchers to knock out or otherwise alter the expression of any gene they are studying. The new method ...
Biotechnology
Apr 9, 2012
0
0
Researchers have devised a nanoscale sensor to electronically read the sequence of a single DNA molecule, a technique that is fast and inexpensive and could make DNA sequencing widely available.
Bio & Medicine
Mar 26, 2012
0
0
