至第八对叶原基产生后，茎端分生组织才稍微隆起，细胞数目增多。

At the appearance of the eighth leaf primordia, SAM formed a bulge and had more cells.

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心脏的原基分布图和心脏细胞谱系是心脏起源和形态发生研究的主要方面。

The cardiac fate maps and cell lineages are the main aspects in the research on the cardiac origin and morphogenesis.

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所构建的重组人胰岛素原基因能指导靶细胞随葡萄糖浓度的变化调节胰岛素分泌。

The cells combined human proinsulin gene has the ability of producing insulin with increase in glucose concentration in vitro.

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