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In human epithelial cells, sex chromatin appears as a small granule attached to the nuclear envelope.
在人的上皮细胞中, 性染色质象个小颗粒,连在核膜上.
辞典例句
"the presence or absence of sex chromatin in cells obtained by amniocentesis makes it possible to determine the sex of a fetus"
性染色质???又称 :性染色质(Barr body )???
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