rna

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rna

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

Definition
  1. Noun:
    • Ribonucleic acid: A long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell, where it is associated with microsomes. It transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in the cell. In some viruses, RNA serves as the genetic material.
Usage
  • Noun:
    • RNA is a crucial molecule for translating genetic instructions into proteins.
    • Scientists study the structure of RNA to understand viral replication.
    • Messenger RNA (mRNA) carries the genetic code from DNA to the ribosome.
Advanced Usage
  • "RNA interference (RNAi)": A biological process where RNA molecules inhibit gene expression.
    • RNA interference is a powerful tool for silencing specific genes in research.
  • "RNA world hypothesis": A theory that RNA was the first self-replicating molecule in the origin of life.
    • The RNA world hypothesis suggests life may have begun with RNA-based systems.
Variants and Related Words
  • mRNA (messenger RNA): A type of RNA that carries genetic information from DNA to the ribosome for protein synthesis.
  • tRNA (transfer RNA): A type of RNA that brings amino acids to the ribosome during protein synthesis.
  • rRNA (ribosomal RNA): A type of RNA that forms the core structure of the ribosome.
  • Ribonucleic acid: The full name for RNA.
Synonyms
  • Ribonucleic acid: The full chemical name, used interchangeably with RNA in scientific contexts.
  • Nucleic acid: A broader category of biological molecules that includes both RNA and DNA.
Related Phrases
  • "RNA polymerase": An enzyme that synthesizes RNA from a DNA template.
    • RNA polymerase initiates transcription by binding to a specific DNA sequence.
  • "RNA sequencing": A technique to determine the sequence of nucleotides in an RNA molecule.
    • RNA sequencing revealed the expression levels of thousands of genes.
rna

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

Noun
  1. (biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes; it transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in the cell
    • ribonucleic acid is the genetic material of some viruses

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