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 ...

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 ...

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 ...

This discovery, along with the identification of other nitrogenous bases, laid the foundation for our understanding of DNA and RNA structure. Cytosine can be synthesized chemically or isolated from ...

They say that change takes time. Well, that's not the case for RNA. The small biological molecule acts like a switchboard ...

Scientists uncover how the nucleolus, a tiny structure within cells, may control aging and lifespan, opening new ...

From there, DNA or RNA provides the instructions for cells ... McCoy's team also hopes to find bits of water trapped in the crystalline structure of Bennu's mineral grains and trace that water's ...

RNA breaks destined for repair are inflicted by sequence-specific or structure-specific endoribonucleases during ... termini via three nucleotidyl transfer steps similar to those of DNA ligases: (Step ...

The first enzyme, YcaO, modifies an amino acid in the peptide to convert the peptide into a ring structure like the bases that allow DNA and RNA to pair with other DNA or RNA molecules.

In this study, the researchers reveal the structure of U11 snRNP—one ... introns—from the precursors of messenger RNA ...