檢視姐妹染色单体的原始碼

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|<center>'''姐妹染色单体'''<br><img
src=" https://ts1.cn.mm.bing.net/th/id/R-C.acdac01b2547ab9aeed60d6fc1e1685e?rik=oc9LiDQTgwVGZQ&riu=http%3a%2f%2fimg.mp.itc.cn%2fupload%2f20170301%2faa769ed677904b45ae03ac590994931b_th.jpeg&ehk=FYZ1IvxR0d%2bjj1Aw1UClVmpwyJJDLgt90pjEMy1qlIo%3d&risl=&pid=ImgRaw&r=0" width="280"></center><small>  圖片來自优酷</small> 
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'''姐妹染色单体'''是对原有染色单体概念的拓展和深化。运用这一概念能够明晰地反映出有丝分裂、减数分裂过程中染色体的行为特点，比笼统的染色单体的提法更形象、具体和贴切。

姐妹染色单体交换是[[细胞遗传学]]研究的一个新方法。