The chemical structure of uracil, showing its single-ring pyrimidine ... and antisense oligonucleotide (ASOs), rely on the specific base-pairing properties of uracil to target and regulate ...

who first proposed the double helix structure of DNA. In this type of pairing, adenine (A) forms two hydrogen bonds with thymine (T) in DNA or uracil (U) in RNA, while guanine (G) forms three hydrogen ...

A strand of DNA also has a complex structure ... also made of a long string of bases: guanine, cytosine and adenine (like DNA), but instead of thymine it has uracil — which is what turned ...

Their analyses found that virus strains that had evolved from the original one isolated in Wuhan, China had a disproportionate number of cytosine bases that were switched to uracil, in addition to ...

In all four, the team detected and measured adenine, guanine, cytosine, uracil, thymine, several compounds related to those bases and a few amino acids. Using the same technique, the team also ...