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Definition and other additional information on Chromosome mutation from Biology-Online.org dictionary. ... A change in the chromosome structure or number, often due to an error in pairing during the crossing-over stage of meiosis. The main types of chromosome mutation are translocation, duplication, deletion and inversion.
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www.biology-online.org/dictionary/Chromosome_mutation
www.biology-online.org/dictionary/Chromosome_mutation
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Chromosome abnormality - Wikipedia, the free encyclopedia
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A chromosome anomaly , abnormality or aberration reflects an atypical number of chromosomes or a structural abnormality in one or more chromosomes. A karyotype refers to a full set of chromosome...
en.wikipedia.org/wiki/Chromosome_abnormality
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However, size and number of chromosomes vary among species. Chromosome mutations are different from gene mutations in that a spontaneous modification results in more pronounced effects. ... A common example of chromosomal mutation in humans is the Down’s syndrome where a person has either one less or one more chromosome...
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library.thinkquest.org/27407/chrommut.htm
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--suffixes: -somy refers to a single chromosome, having an extra or missing one. Thus, trisomy-21 means having an extra chromosome 21 (Down's syndrome), Monosomy means missing ... These extra copies can then mutate to take on altered roles in the cell, or they can become pseudogenes, inactive forms of the gene, by mutation.
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www.bios.niu.edu/johns/genetics/chromosome_mutations.ht...
www.bios.niu.edu/johns/genetics/chromosome_mutations.htm
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Mutation - Wikipedia, the free encyclopedia
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In biology, a mutation is a randomly derived change to the nucleotide sequence of the genetic material of an organism. Mutations can be caused by copying errors in the genetic material during cell d...
en.wikipedia.org/wiki/Mutation
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A rare case of chromosome variability is described for the ground vole, Terricola majori, from the Lagodekhi Nature Reserve (Georgia). ... This structural rearrangement is probably a neutral mutation and is described for forest T. majori voles for the first time.
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www.medscape.com/medline/abstract/9289424
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Here we report a high incidence of LOH at chromosome 11q23 in non-familial breast cancers with in situ, invasive, and metastatic tumour cells microdissected from archival haematoxylin and eosin (H & E) sections for polymerase chain reaction (PCR)-LOH analysis at polymorphic microsatellite loci.
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www.medscape.com/medline/abstract/7616353
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A chromosome mutation is any change in the structure or arrangement of the chromosomes. Mutations to chromosomes happen most frequently during the crossing over stage of meiosis.
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www.ebi.ac.uk/2can/disease/genes5.html
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