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X染色质(又称Barr小体或X小体)是正常女性间期细胞核中特异染色后出现的浓染小体。X染色质的观察是性别鉴定的简便而有效的方法,是遗传学实验课中的一项基本实验内容,也是检测某些遗传病患者和进行产前诊断的手段之一。我们实验室经过几年的实验摸索,总结出一套简便易行的检测方法,介绍如下。1 方法1.1 被检者漱口,用压舌板刮取其口腔内颊部粘膜细胞,并均匀涂在干净的载玻片上,涂片的范围不要太大,不要反复涂抹,
X Chromatin (also known as Barr body or X body) is a normal female interphase nucleus after staining stained body. X Chromatin observation is a simple and effective method of gender identification. It is one of the basic experimental contents in the experimental class of genetics. It is also one of the means to detect some genetic diseases and make prenatal diagnosis. After several years of laboratory experiments in our laboratory, summed up a set of easy detection methods, described below. 1 Method 1.1 was seized mouthwash, with the pressure spatula to scrape the oral buccal mucosal cells and evenly coated on a clean glass slide, the scope of the smear not too much, do not repeatedly smear,