1. Most grass embryos have a flap-like structure known as the epiblast.
大多数禾本科胚有一片瓣状结构通常称为外胚叶。
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2. Four types of the of grafts from the organizer area were transplanted into host embryos to see if the epiblast or hypoblast of the organizer area had an ability to induce a secondary embryo.
并将组织者区域的细胞移植到宿主胚胎中，验证其诱导次级胚胎的能力。
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3. Four types of the of grafts from the organizer area were transplanted into host embryos to see if the epiblast or hypoblast of the organizer area had an ability to induce a secondary embryo.
