Nullisomic
From Infogalactic: the planetary knowledge core
Lua error in package.lua at line 80: module 'strict' not found. Nullisomic is a genetic condition involving the lack of one of the normal chromosomal pairs for a species (2n-2). Humans with this condition will not survive.[1]
Causes
Nullisomy is caused by non-disjunction during meiosis that causes two of the gametes to have no chromosomal material, leaving the other two gametes to have double the amount of chromosomal material (disomic). Due to the lack of genetic information, the nullisomic gametes are rendered unviable for fertilization.[2]
References
- ↑ http://www.molecular-plant-biotechnology.info/mutations/nullisomic.htm Archived December 19, 2007 at the Wayback Machine
- ↑ Cunningham F, Leveno K.J., Bloom S.L., Spong C.Y., Dashe J.S., Hoffman B.L., Casey B.M., Sheffield J.S. (2013). Genetics. In Cunningham F, Leveno K.J., Bloom S.L., Spong C.Y., Dashe J.S., Hoffman B.L., Casey B.M., Sheffield J.S. (Eds), Williams Obstetrics, Twenty-Fourth Edition. Retrieved September 28, 2015 from http://accessmedicine.mhmedical.com.proxy1.lib.uwo.ca/content.aspx?bookid=1057&Sectionid=59789151.
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