Cartoon comparing DNA strand displacement using the DNA-tweezers (top) versus the DNA probe built into the previous chip (bottom). Disclaimer: AAAS and EurekAlert! are not responsible for the ...

Mahipal Ganji, a biophysicist at Delft University, and colleagues reported in Science on February 22 that they first tethered two ends of a piece of DNA to a surface and observed the condensin complex ...

When we see pictures of chromosomes ... We've now zoomed in enough to see portions of the DNA strand. The DNA is wrapped around histones -- protein structures that are sometimes depicted as ...

This means that one strand's sugar-phosphate chain runs in ... used a process called X-ray diffraction to capture images of DNA molecules (Figure 5). Although the black lines in these photos ...

The practical absence of physical knots in known RNA chains contrasts with the documented incidence of knots in other biomolecules (proteins and viral DNA) and suggests that thermodynamic or ...

The King's team took an experimental approach, looking particularly at x-ray diffraction images of DNA ... Watson and Crick showed that each strand of the DNA molecule was a template for the ...

Through the technique of DNA sequencing, first developed by Frederick Sanger, scientists can determine the exact order of nucleotides in an organism’s genes. Knowing this order is the first step ...