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isochromosome
EntityQ900950· pop 14· linked from 105 articles

isochromosome

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Also known as isochromosomes

thumb|Isochromosome in which the arms are mirror copies of each other.

~6 min read

Encyclopedic overview

8 sections
Contents
  • Nomenclature
  • Mechanism
  • Centromere misdivision
  • U-type strand exchange
  • Consequences
  • Turner syndrome
  • Neoplasia
  • References

thumb|Isochromosome in which the arms are mirror copies of each other.

An isochromosome is an unbalanced structural abnormality in which the arms of the chromosome are mirror images of each other. The chromosome consists of two copies of either the long (q) arm or the short (p) arm because isochromosome formation is equivalent to a simultaneous duplication and deletion of genetic material. Consequently, there is partial trisomy of the genes present in the isochromosome and partial monosomy of the genes in the lost arm.

Excerpted from Wikipedia’s “isochromosome” article, available under the CC BY-SA 4.0 licence.

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