A handful of genes that are normally active in the developing embryo are expressed in a differentiated cell, such as a skin cell, causing that cell to revert back to its undifferentiated state.

一些通常在发育胚胎中活跃的基因会被分化细胞(比如皮肤细胞)表达，促使细胞回复到未分化状态。

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Nasopharyngeal cancers were primarily undifferentiated carcinomas (89%), whereas nonnasopharyngeal upper respiratory tract carcinomas were predominantly squamous cell (88%).

鼻咽癌是主要的未分化癌（89%），然而非鼻咽部上呼吸道癌主要是鳞状细胞癌（88%）。

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This raised the question of whether transcription factors could directly induce other defined somatic cell fates, and not only an undifferentiated state.

这就引出问题，转录因子是否能直接诱导其它明确的体细胞，而不仅是未分化状态的细胞。

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The zygote or this fertilized egg is a completely undifferentiated cell.

受精卵,或者说已受精的卵子,是一个完全未分化的细胞

耶鲁公开课 - 生物医学工程探索课程节选

Embryonic stem cell research involves collecting undifferentiated cells from embryos.

CNN: Dr. Sanjay Gupta: Understanding stem cell research

Embryonic stem cells are "blank" or undifferentiated cells that can develop into any type of cell in the body.

CNN: NIH announces owners of stem cells