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Meaning of CHROMOSOMAL MUTATION

 
WordNet Dictionary
 
 Definition: 
[n]  (genetics) any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organism
 
 Synonyms: genetic mutation, mutation
 
 See Also: alteration, change, gene mutation, inversion, modification, mutagenesis, point mutation, reversion, saltation, transposition

 

 

Biology Dictionary
 
 Definition: Can refer to any of a number of DNA mutations which results in a change in the protein encoded by the mutated gene, such as point mutations, insertion or deletion mutations (frameshift mutations), or nonsense mutations. More often this refers to mutations involving chromosomes, such as the inversion of part of one chromosome such that the inverted part no longer matches with its homologous pair, a translocation of one part of a chromosome to a different chromosome, deletions of parts of chromosomes, or accidents which happen during the division of the nucleus like the unequal portioning of chromosomes between the daughter cells.
 

 

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