但是完全对称的胚胎如何分辨左侧和右侧让发育生物学家感到迷惑。
But just how a perfectly symmetrical embryo settles on what's right and what's left has fascinated developmental biologists for a long time.
DennisGray是佛罗里达大学的发育生物学家，如果他的方法可行，将会改变这种现状。
If Dennis Gray, a developmental biologist at the University of Florida, has his way, that will change.
研究负责人、得克萨斯大学发育生物学家JonathanGraff称，“从蠕虫到哺乳动物，这种基因控制脂肪形成。”
"From worms to mammals, this gene controls fat formation," said Jonathan Graff, a developmental biologist at the University of Texas, Southwestern, who led the study.
近一个世纪前，生物学家发现，如果他们在无脊椎动物胚胎生命的早期阶段将其分成两部分，它会存活下来并发育成两个正常的胚胎。
Nearly a century ago, biologists found that if they separated an invertebrate animal embryo into two parts at an early stage of its life, it would survive and develop as two normal embryos.
圣地亚哥的加利福尼亚大学的生物学家们展示了神经元在神经系统发育过程中依靠电活动方式进行联系使用的化学语言。
UC San Diego biologists have shown that the chemical language with which neurons communicate depends on the pattern of electrical activity in the developing nervous system.
这群生物学家讲注意力集中在四肢末端的一组被称为发育“组织者”的细胞群上。
The biologists focused on a group of cells along the outer edge of the limb, called a developmental "organizer."
这群生物学家讲注意力集中在四肢末端的一组被称为发育“组织者”的细胞群上。
The biologists focused on a group of cells along the outer edge of the limb, called a developmental "organizer."
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