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    RNA
    /ˌärˌenˈā/

    noun

    • 1. ribonucleic acid, a nucleic acid present in all living cells. Its principal role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins, although in some viruses RNA rather than DNA carries the genetic information.
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  3. 2 days ago · RNA, complex compound of high molecular weight that functions in cellular protein synthesis and replaces DNA as a carrier of genetic codes in some viruses. RNA consists of ribose nucleotides and the nitrogenous bases adenine, guanine, cytosine, and uracil. Learn about the structure, types, and functions of RNA.

  4. May 23, 2024 · Definition. Ribonucleic acid (abbreviated RNA) is a nucleic acid present in all living cells that has structural similarities to DNA. Unlike DNA, however, RNA is most often single-stranded. An RNA molecule has a backbone made of alternating phosphate groups and the sugar ribose, rather than the deoxyribose found in DNA.

  5. RNA (ribose nucleic acid) is a complex molecule that plays a big part in living cells. It is similar in structure to DNA, which carries the genes that give rise to all...

  6. 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...

  7. Oct 15, 2020 · Together, RNA, short for ribonucleic acid, and DNA, short for deoxyribonucleic acid, make up the nucleic acids, one of the three or four classes of major "macromolecules" considered crucial...

  8. May 16, 2024 · The meaning of RNA is any of various nucleic acids that contain ribose and uracil as structural components and are associated with the control of cellular chemical activities.

  9. Jan 8, 2020 · RNA is the acronym for ribonucleic acid. Ribonucleic acid is a biopolymer used to code, decode, regulate, and express genes. Forms of RNA include messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). RNA codes for amino acid sequences, which may be combined to form proteins.

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