Mutation, null

Mutation, null
A mutation (a change) in a gene that leads to its not being transcribed into RNA and/or translated into a functional protein product. For example, a null mutation in a gene that usually encodes a specific enzyme leads to the production of a nonfunctional enzyme or no enzyme at all.

Medical dictionary. 2011.

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  • Mutation — A permanent change, a structural alteration, in the DNA or RNA. In humans and many other organisms, mutations occur in DNA. However, in retroviruses like HIV, mutations occur in RNA which is the genetic material of retroviruses. In most cases,… …   Medical dictionary

  • null mutant — Mutation in which there is no gene product …   Dictionary of molecular biology

  • Null allele — A null allele is a mutant copy of a gene that completely lacks that gene s normal function. This can be the result of the complete absence of the gene product (protein, RNA) at the molecular level, or the expression of a non functional gene… …   Wikipedia

  • Mutation — For other uses, see Mutation (disambiguation). Part of the Biology series on Evolution …   Wikipedia

  • Null mutation — A mutation (a change) in a gene that leads to its not being transcribed into RNA and/or translated into a functional protein product. For example, a null mutation in a gene that usually encodes a specific enzyme leads to the production of a… …   Medical dictionary

  • null mutation — See: amorph …   Glossary of Biotechnology

  • Demence fronto temporale par mutation du gene GRN — Démence fronto temporale par mutation du gène GRN Démence fronto temporale par mutation du gène GRN Autre nom Démence fronto temporale avec des inclusions ubiquitine positives Référence MIM …   Wikipédia en Français

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  • Démence fronto temporale par mutation du GRN — Démence fronto temporale par mutation du gène GRN Démence fronto temporale par mutation du gène GRN Autre nom Démence fronto temporale avec des inclusions ubiquitine positives Référence MIM …   Wikipédia en Français

  • Démence fronto temporale par mutation du gène grn — Autre nom Démence fronto temporale avec des inclusions ubiquitine positives Référence MIM …   Wikipédia en Français

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