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Nullisomic
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.〔http://www.molecular-plant-biotechnology.info/mutations/nullisomic.htm 〕 ==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.〔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.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Nullisomic」の詳細全文を読む
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