将鼠 sonic hedgehog 基因的cDNA插入到鼠 paired related homeobox 1 增强子的调控下,使其在胚胎肢体芽中表达。(来源:J:89228)
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The mouse sonic hedgehog cDNA was placed under the control of the mouse paired related homeobox 1 enhancer to drive its expression in embryonic limb buds. (J:89228)