What have we learned about RNA structure and function so far ... Later, in 1960, the discovery that an RNA molecule and a DNA molecule could form a hybrid double helix was the first experimental ...

In reality, there is much more to the RNA story. However, in the half-century since the structure of DNA was first elaborated, scientists have learned that RNA does much more than simply play a ...

Later it was found that the sugar in nucleic acid can be ribose or deoxyribose, giving two forms: RNA and ... This way DNA can reproduce itself without changing its structure -- except for ...

But when U.S. National Institute of Standards and Technology researchers Christina Bergonzo and Alexander Grishaev put ...

Credit: Kateryna Kon/Science Photo Library/ What is DNA, and how does it work? You don't need a degree in ...

The purine structure consists of a pyrimidine ring (positions 1 to 6) fused to an imidazole ring (positions 7 to 9). Adenine and guanine, the two most common purines in DNA and RNA, share this core ...

Kossel isolated cytosine from calf thymus tissues and found that it was a component of nucleic acids. This discovery, along with the identification of other nitrogenous bases, laid the foundation for ...

RNA breaks destined for repair are inflicted by sequence-specific or structure-specific endoribonucleases during physiological RNA processing ... ATP-dependent RNA ligases join 3’-OH and 5’-PO 4 RNA ...

A variety of chemical modifications decorate the nucleic acids, increasing the alphabet of DNA to about a dozen known nucleotide variants. The alphabet of RNA is even more impressive, consisting of at ...

Proteins form the structural and functional backbone of the cell, and any perturbation in their synthesis can disrupt normal ...