英德
有道
百度
谷歌
图片
维基
百科
三体的
isomic t
- 控制茸毛色的基因（t）可以定位在新三体的超数染色体上。
The gene controlling pubescence color(t)could be located on the extrachromosome of the new trisomic. - 以幼穗直接出芽，一次成苗途径培养，不同三体的培养力亦存在差异；
There was also significant difference in culture ability among different trisomics as the little plants were emerged directly from cultured young panicles. - 结论：胎儿游离dna检测作为21三体、18三体和13三体的通用筛查工具的程度，主要取决于测定方法的准确性和成本。
CONCLUSIONS: The extent to which free fetal DNA testing can be applied as a universal screening tool for trisomy 21, 18, and 13 depends mainly on assay accuracy and cost.
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