Nuclear DNA does not appear in free linear strands ... The chain of nucleosomes is then wrapped into a 30 nm spiral called a solenoid, where additional H1 histone proteins are associated with ...

What did the duo actually discover? Many people believe that American biologist James Watson and English physicist Francis Crick discovered DNA in the 1950s. In reality, this is not the case.

The researchers watched replicating DNA from E. coli bacteria ... The switch kicks in to stop the spiral from unzipping too far and lets the polymerase catch up. This is important because it ...

The famous DNA double helix is considered right-handed, meaning its spiral strands — a sugar-phosphate backbone — twist to the right. (To picture this, make a thumbs-up with your right hand ...