Several different bases can neutralise acids, and water is always produced as a result of these reactions. Metal oxides and alkalis are two types of base. Basic substances neutralise acids ...

Ribonucleic acid (RNA) is a linear molecule composed of four types of smaller molecules called ribonucleotide bases: adenine (A), cytosine (C), guanine (G), and uracil (U). RNA is often compared ...

Hidden within the genetic code lies the "triplet code," a series of three nucleotides that determine a single amino acid. How did scientists ... two or three different bases.