The detection rate of N-ras mutations in normal karyotype(4 of 30， 13.3%) was higher than that in abnormal karyotype (1 of 19， 5.3%)， but no statistical significance difference was observed (P>0.05).
N-ras突变在正常核型中的检出率(4/30,13.3%)高于在异常核型中的检出率(1/19， 5.3%)，但差异无统计学意义(P>0.05)。
参考来源 - 急性髓性白血病N·2,447,543篇论文数据，部分数据来源于NoteExpress
本发明涉及一种具有正常核型的培养的动物体细胞；
The present invention relates to a cultured animal body cell with normal nuclear type.
背景：目前在胚胎多潜能干细胞建系和培养过程中，存在着建系率低、具有正常核型的干细胞系比率低等问题。
BACKGROUND: Presently, some problems still exists during establishment and culture of embryo multipotential stem cells, such as low rate of establishment, low rate of stem cells with normal karyotype.
方法：采用G、C显带染色体核型分析等方法，比较染色体异态核型人群和正常核型人群的早期生殖障碍的发生率。
Methods: The incidence rates of early reproduction inability of chromosome heteromorphism group and normal karyotype group were compared by using G, C-banded chromosome karyotype analysis.
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