Two cell layers (diploblastic) separated by a gelatinous mesoglea.
两层细胞(两胚层),中间是凝胶状的中胶层。
Two cell layers (diploblastic) separated by a gelatinous mesoglea.
两层细胞(两胚层),中间是凝胶状的中胶层。
But the only choices hae been glass labware and a product called Matrigel, a gelatinous protein mixture secreted by mouse tumor cells.
但是,玻璃材质的试验器皿是唯一的选择,另外就是基质胶,是一种由大鼠肿瘤细胞产生的胶状蛋白泌物。
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