The resulting RNA molecule, typically mRNA, carries the genetic message from the nucleus to the cytoplasm for protein synthesis. Nucleic acids are the foundation of genetic engineering techniques, ...

a sugar molecule, and a phosphate group. Levene made his initial proposal in 1919, discrediting other suggestions that had been put forth about the structure of nucleic acids. In Levene's own ...

not nucleic acid, but by the late 1940s, DNA was largely accepted as the genetic molecule. Scientists still needed to figure out this molecule's structure to be sure, and to understand how it worked.

But James Watson and Francis Crick's claim was a valid one, for they had in fact discovered the structure of DNA ... that DNA, a nucleic acid, carries genetic information. But no one knew how ...

Figure 1: Ribbon diagram representation of the structure ... this important family of enzymes. * Helicases as molecular motors in nucleic acid strand separation, November 20–22, 1999, Center ...

This schematic shows the secondary structure of two aptamers ... Aptamers can be labeled with fluorescent dyes or radionuclides for molecular imaging applications. They can be used to visualize ...