取一粒浸软的玉米种子(果实),用刀片将种子从中央纵向剖开。在

取一粒浸软的玉米种子(果实),用刀片将种子从中央纵向剖开。在剖面上滴一滴稀释的碘酒,再用放大镜仔细观察,被碘酒染成蓝色的是(  

A.果皮和种皮                                               B.胚

C.胚乳                                                 D.胚芽、胚轴、胚根、子叶

答案

C

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