informational rna

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informational rna

A student studies a diagram of informational RNA in a biology textbook.

Definition

Noun 1. The template for protein synthesis: Informational RNA is a type of RNA molecule that serves as the direct template or set of instructions used by cellular machinery to build proteins. 2. The form of RNA that carries genetic information: It is the specific RNA molecule that carries the coded genetic information copied from DNA in the cell's nucleus to the ribosomes in the cytoplasm, where proteins are synthesized.

Usage

Informational RNA is a scientific term used primarily in the fields of molecular biology, genetics, and biochemistry. It refers to the specific RNA molecule (messenger RNA) that acts as an intermediary between DNA and protein.

Examples

  • As a noun (subject):

    • Informational RNA is transcribed from a DNA template.
    • The sequence of nucleotides in the informational RNA determines the sequence of amino acids in the protein.

  • As a noun (object):

    • The ribosome reads the informational RNA to synthesize a polypeptide chain.
    • Scientists studied the stability of the informational RNA under different conditions.
Advanced Usage
  • Central Dogma Context: Informational RNA is a key component in the central dogma of molecular biology (DNA → RNA → protein), representing the "RNA" step that carries the informational message.
  • Comparative Biology: The study of informational RNA across different species can reveal evolutionary relationships and genetic conservation.
Variants and Related Words
  • Messenger RNA (mRNA): This is the full, more common term for informational RNA. The two terms are synonymous in modern usage.
  • Template RNA: An older, less common synonym for informational RNA.
  • Transcription: The process by which informational RNA is synthesized from DNA.
  • Translation: The process by which the information in informational RNA is decoded to build a protein.
Synonyms
  • Messenger RNA (mRNA): The standard and most widely used synonym.
  • Transcript: In a specific context, referring to the RNA product of transcription.
Related Phrases and Concepts
  • Genetic code: The set of rules by which information encoded in informational RNA is translated into proteins.
  • Coding sequence: The portion of the informational RNA that actually contains the instructions for a protein.
  • Untranslated regions (UTRs): The parts of an informational RNA molecule that are not translated into protein but have regulatory functions.
informational rna

A student studies a diagram of informational RNA in a biology textbook.

Noun
  1. the template for protein synthesis; the form of RNA that carries information from DNA in the nucleus to the ribosome sites of protein synthesis in the cell

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