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- Dynamic_mutation abstract "In genetics, a dynamic mutation is an unstable heritable element where the probability of expression of a mutant phenotype is a function of the number of copies of the mutation. That is, the replication product (progeny) of a dynamic mutation has a different likelihood of mutation than its predecessor. These mutations, typically short sequences repeated many times, give rise to numerous known diseases including the Trinucleotide repeat disorders.Robert I. Richards and Grant R. Sutherland called these phenomena, in the framework of dynamical genetics, dynamic mutations. Triplet expansion is caused by slippage during DNA replication. Due to the repetitive nature of the DNA sequence in these regions 'loop out' structures may form during DNA replication while maintaining complementary base pairing between the parent strand and daughter strand being synthesized. If the loop out structure is formed from sequence on the daughter strand this will result in an increase in the number of repeats. However if the loop out structure is formed on the parent strand a decrease in the number of repeats occurs. It appears that expansion of these repeats is more common than reduction. Generally the larger the expansion the more likely they are to cause disease or increase the severity of disease. This property results in the characteristic of anticipation seen in trinucleotide repeat disorders. Anticipation describes the tendency of age of onset to decrease and severity of symptoms to increase through successive generations of an affected family due to the expansion of these repeats.".
- Dynamic_mutation wikiPageExternalLink 2187.
- Dynamic_mutation wikiPageID "8973825".
- Dynamic_mutation wikiPageRevisionID "544654937".
- Dynamic_mutation hasPhotoCollection Dynamic_mutation.
- Dynamic_mutation subject Category:Mutation.
- Dynamic_mutation comment "In genetics, a dynamic mutation is an unstable heritable element where the probability of expression of a mutant phenotype is a function of the number of copies of the mutation. That is, the replication product (progeny) of a dynamic mutation has a different likelihood of mutation than its predecessor. These mutations, typically short sequences repeated many times, give rise to numerous known diseases including the Trinucleotide repeat disorders.Robert I. Richards and Grant R.".
- Dynamic_mutation label "Dynamic mutation".
- Dynamic_mutation label "Mutacja dynamiczna".
- Dynamic_mutation sameAs Mutacja_dynamiczna.
- Dynamic_mutation sameAs m.027rwlq.
- Dynamic_mutation sameAs Q5318995.
- Dynamic_mutation sameAs Q5318995.
- Dynamic_mutation wasDerivedFrom Dynamic_mutation?oldid=544654937.
- Dynamic_mutation isPrimaryTopicOf Dynamic_mutation.