DNA亲子鉴定

in cn •  2 years ago 

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DNA亲子鉴定

鉴定亲子关系有许多种方法,古代的滴骨认亲、滴血认亲这两种就别提了,那就是个笑话 ...

到了现代,亲子鉴定常用的方法有下面这三种,分别为染色体多态性、血型测试、DNA鉴定等等,其中以DNA鉴定最广为大家所使用 ...

取两人的血液、唾液、毛发、口腔细胞等等都可以 ...

理论基础 :

人的染色体有23对(46条),同一对染色体在同一位置上的这一对基因,一个来自于父亲,另一个来自于母亲,在正常情况之下,会一个与父亲相同,另一个与母亲相同,除非发生了基因突变 ...

DNA亲子鉴定,便是选择十几个DNA位点来进行比对,若全部一样,便可确定为亲子关系,若有三个以上的位点不同,则为非亲子,若只有一两个位点不同,则有可能是发生了基因突变,此时便要再加做一些位点的检测,再来进行断定 ...

所以,DNA亲子鉴定,否定的准确率极为接近100%,肯定的准确率亦达到了99.99%
...

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  ·  2 years ago  ·  

This post has been manually upvoted by @epistem


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