She had been researching mechanisms regulating early development and organ formation in mice using embryonic stem cells, which can develop into the multitude of cells that make body parts.
他在老鼠上使用胚胎干细胞研究机制调节和器官形成。胚胎干细胞能形成身体部位的多细胞。
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But Britain has, in most scientists' eyes, behaved rationally towards stem-cell research-overseeing and regulating what is going on, but not actually banning very much.