At some point, RNA must have replicated itself before the evolutionary arrival of DNA and proteins, and now we might know how ...

What have we learned about RNA structure and function so far ... an RNA molecule and a DNA molecule could form a hybrid double helix was the first experimental demonstration of a way in which ...

RNA Timeline: A History in Hybridization and Structure Alexander Rich and David Davies discover the double-stranded RNA helix and show that polyribo U and polyribo A hybridize spontaneously.6 Ben Hall ...

1 In their 1953 publication on the DNA double helix, Watson and Crick stated: "It is probably impossible to form this structure with ribose, instead of deoxyribose." The reason: The 2' hydroxyl on ...

RNA strands are shorter than DNA strands. RNA sometimes forms a secondary double helix structure, but only intermittently. DNA is a much longer polymer than RNA. A chromosome, for example, is a single ...

structure. As a result, RNA can't flip one base without hitting another, or without moving around atoms, which would tear apart the helix. "For something as fundamental as the double helix ...

Scientists have designed a new method for detecting and analyzing double-stranded RNA ... stranded structure of dsRNA, the team reasoned that it would respond to the dye like double-helix DNA.