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奔跑的乌拉龟

铜虫 (正式写手)

[求助] 基因的拷贝数与几倍体是没什么关系的

弱弱的问一句,基因的拷贝数与几倍体有什么关系吗?多拷贝基因是怎么确定的?是不是一个基因组里某一个基因就叫一个拷贝?常听师姐说某个基因是多拷贝的,一直不太理解,谢谢大家了!
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cicelyzh

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【答案】应助回帖

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wizardfan: 金币+2, 谢谢分享经验 2013-04-10 07:19:57
奔跑的乌拉龟: 金币+5, ★★★很有帮助 2013-04-21 21:30:28
多拷贝基因是指在基因组序列(一套完整的染色体DNA)中存在多个拷贝,与多倍体没有关系。多倍体是指细胞中有多套染色体。
2楼2013-04-10 02:17:18
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wizardfan

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Polyploid cells and organisms are those containing more than two paired (homologous) sets of chromosomes (http://en.wikipedia.org/wiki/Polyploid)
Copy-number variations (CNVs)—a form of structural variation—are alterations of the DNA of a genome that results in the cell having an abnormal number of copies of one or more sections of the DNA (http://en.wikipedia.org/wiki/Copy-number_variation)
3楼2013-04-10 07:19:43
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