what thise rna

Ribonucleic acid (RNA) is a polymeric molecule implicated in various biological roles in coding, decoding, regulation, andexpression of genes. RNA and DNA are nucleic acids, and, along with proteins and carbohydrates, constitute the three majormacromolecules essential for all known forms of life. Like DNA, RNA is assembled as a chain of nucleotides, but unlike DNA it is more often found in nature as a single-strand folded onto itself, rather than a paired double-strand. Cellular organisms usemessenger RNA (mRNA) to convey genetic information (using the letters G, U, A, and C to denote the nitrogenous basesguanine, uracil, adenine, and cytosine) that directs synthesis of specific proteins. Many viruses encode their genetic information using an RNA genome.