Comparison of a single-stranded RNA and a double-stranded DNA with their corresponding nucleobases. (Image: Wikimedia Commons, CC SA 3.0) The most common type of base pairing is the Watson-Crick base ...

and several nitrogen-containing bases. Later it was found that the sugar in nucleic acid can be ribose or deoxyribose, giving two forms: RNA and DNA. In 1943, American Oswald Avery proved that DNA ...

All five nucleobases that make up DNA and RNA have now been detected in meteorite samples ... as terrestrial soil and other environments also contain nucleotide bases. “I think [the researchers] ...

a doughnut-shaped connector that is positioned at the entrance to the virus shell and feeds DNA into the shell, and a novel ribonucleic acid (RNA)-enzyme complex that converts chemical energy to ...

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 ...

Repair reactions involve the excision of chemically altered or mispaired bases from the DNA duplex. Resulting gaps are filled in by DNA polymerases ... A metal-driven mechanism was revealed by our ...

This is where DNA and RNA epigenetics comes in: a series of mechanisms that act as "markers" on genes, to control their activity without modifying the DNA or RNA sequence itself. Until now, DNA and ...

With a composition quite similar to DNA, RNA is able to perform ... Both the sequence of bases and the three-dimensional structure of RNA are determining factors in the great versatility of ...