RNA is the acronym for ribonucleic acid. It is a nucleic acid that is responsible for transferring genetic information from DNA in order to synthesize proteins according to the functions and characteristics indicated. RNA is present in the cytoplasm of eukaryotic and prokaryotic cells. Also, the RNA is composed of a simple chain that can sometimes be duplicated. It is made up of bonded nucleotides that form chains. Each nucleotide consists of: a sugar (ribose), a phosphate group and 4 nitrogen bases (adenine, guanine, uracil and cytosine).

RNA carries the genetic information of DNA for the synthesis of the necessary proteins. That is, the RNA copies the information of each DNA gene and then goes to the cytoplasm, where it binds to the ribosome to direct protein synthesis.

RNA begins to be studied in 1868 by Friedrich Miescher, also, he was the first person to investigate DNA and promote the study of nucleic acids. The international abbreviation is RNA for its acronym in English for ribonucleic acid. Click to see more definition.

RNA types

In reference to the above, we can distinguish the interaction of various types of RNA in genetic expression, among which we have:

  • Messenger RNA(mRNA): known as coding RNA, it has the genetic code that determines the scheme of amino acids to form a protein;
  • RNA transfer(tRNA): is responsible for carrying amino acids to ribosomes in order to incorporate them into the process of protein synthesis, likewise, it is responsible for encoding the information that messenger RNA possesses to a protein sequence and, finally,
  • Ribosomal RNA(rRNA): it is part of the ribosomes and acts in the enzymatic activity, it is responsible for creating the peptide bonds between the amino acids of the polypeptide in the protein synthesis process.

It is also worth mentioning ribozyme, which is a type of RNA with a catalytic function capable of carrying out its self-duplication when there is an absence of proteins. This characteristic is of great importance, since it has to do with the hypothesis that RNA was one of the first forms of life, prior to DNA, and that it allowed the first cell to form, since it contains stored genetic information and can self-duplicate. Check to see more meanings of RNA.


Between ribonucleic acid (RNA) and deoxyribonucleic acid (DNA) there are differences in their structure and function. RNA groups its proteins in a single helix while DNA groups them in a double helix. The nucleotides that make up the RNA are made up of ribose, a phosphate group and four nitrogenous bases: adenine, guanine, cytosine and uracil.

The nucleotides that form the DNA, on the other hand, are made up of deoxyribose, a phosphate group and four nitrogen bases: adenine, guanine, cytosine and thymine, and it is always found in the nucleus. In reference to its functions, the DNA selects, stores and saves the genetic code, in turn, the RNA transmits the genetic code stored by DNA, that is, it serves as a messenger.

  • What does Amnesty Stand for? - The amnesty is a legal act which constitutes the legal oblivion of crimes and the consequent extinction of responsibility of the authors. The word, as such, comes from the Greek ἀμνηστία (amnestia), which means ‘forgetfulness’. In this sense, the[...]
  • What does Amnesia Stand for? - Amnesia is known to affect the functioning of memory that causes total or partial loss of memory. However, the amnesia can be transient or permanent, and can get worse as the days go by. The amnesic disorder or syndrome[...]
  • What does Friendship Stand for? - Friendship is an affective relationship that can be established between two or more individuals, to which fundamental values ​​such as love, loyalty, solidarity, unconditionality, sincerity and commitment are associated, and that is cultivated with regular treatment.[...]
  • What do Amino Acids Stand for? - Amino acids are monomers that form the basis of vital proteins for the proper functioning of our body. The amino acids are composed of an amino group (NH 2 ) that is a basic radical, and a carboxyl group[...]
  • What does Ambivalence Stand for? - Ambivalence is the presence of two opposing interpretations or values ​​against the same object or also referred to as ambivalent behavior. The word ambivalence was first coined by the Swiss psychiatrist Eugen Bleuler (1857-1939) combining the Latin[...]
  • What does Adonay Stand for? - Adonay, also called Adonai, is one of the names by which Jews designate God. As such, it is a word of Hebrew origin (ădōnay) that means ‘my Lord’. Formerly, Jews were forbidden, for reasons of respect, to[...]
  • What does Adolescence Stand for? - The adolescence is the period of life after childhood and before adulthood. It passes from the first signs of puberty, between the ages of 10 and 12, until the full development of the body and the beginning of adulthood,[...]
  • What does Suffering Stand for? - To suffer is a verb that, in its most common use, means to have or suffer some defect or evil, although it is also used in the sense of suffering from a disease or of feeling sorry[...]
  • What does Indoctrination Stand for? - Indoctrination is understood as the action of instructing certain teachings, ideas or beliefs in individuals. The term indoctrination derives from the word indoctrinate, which refers to the action of instilling or aligning one or more people[...]
  • What do DNA and RNA Stand for? - DNA and RNA are nucleic acids and macromolecules that work together to preserve and transmit the genetic information that defines all the vital and characteristic elements of each living being. DNA (deoxyribonucleic acid or DNA in English)[...]