D-ribonucleic acid (D-RNA) is a molecule that carries genetic information in many organisms. Synonyms for D-RNA include deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA consists of a double helix of nucleotides and is the blueprint for all organisms. It is found in the nucleus of the cells of organisms, except for some viruses. RNA, on the other hand, is a single-stranded molecule that plays a crucial role in gene expression and protein synthesis. RNA is found in the nucleus and cytoplasm of cells and comes in different types, including messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). Regardless of the synonym used, D-RNA is an essential component of all living organisms.