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单词 Map unit
释义

Map unit

中文百科

厘摩 Centimorgan

(重定向自Map unit)

厘摩centimorgan,简写为cM),或称为图距单位map unit),是遗传连锁中的距离单位,以现代遗传学之父托马斯·亨特·摩尔根的名字命名。1厘摩的定义为两个位点间平均100次减数分裂发生1次遗传重组。连锁位点之间的距离不超过50厘摩,两个位点间距50厘摩即意味着两者完全不连锁。对于人类来说,1厘摩平均相当于100万个碱基对。

英语百科

Centimorgan 厘摩

(重定向自Map unit)

In genetics, a centimorgan (abbreviated cM) or map unit (m.u.) is a unit for measuring genetic linkage. It is defined as the distance between chromosome positions (also termed, loci or markers) for which the expected average number of intervening chromosomal crossovers in a single generation is 0.01. It is often used to infer distance along a chromosome. It is not a true physical distance however.

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