Tetrasomy 18p

Tetrasomy 18p

Tetrasomy 18p is a rare genetic disease where the short arm of chromosome 18 appears not just two times in a base pair, but four times. The additional chromosome is called a "marker" or an isochromosome.

External links

* [http://www.chromosome18.org/Genetics/Tetrasomy18p.aspx Chromosome 18 Registry and Research society]
* [http://www.tetrasomy18p.com/ Tetrasomy 18p - What is it?]

http://www.tetrasomy18p.ca/


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