This image illustrates the chemical structures of the five main nucleobases found in DNA and RNA. The pyrimidines, thymine (DNA), uracil (RNA), and cytosine are shown on top while the purines, adenine ...

Polymers are made of monomers, and in DNA, these monomers are called nucleotides or nucleobases. The enzymes that handle DNA molecules are often called "polymerases," but the -ase suffix denotes ...

Many biologically important molecules change shape when stimulated by UV radiation. Although this property can also be found in some drugs, it is not yet well understood. Using an innovative technique ...

All five nucleobases that make up DNA and RNA have now been detected in meteorite samples, according to a study published yesterday (April 26) in Nature Communications. The work used recently ...

The OSIRIS-REx mission returned to the sample to Earth in September of 2023, and these studies show that it contains amino acids, nucleobases, and minerals known as evaporites—all elements of ...