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未受精鸡蛋有没有胚盘
更新时间： 2020-09-19 00:00:00  

未受精的鸡蛋也有胚盘。卵黄表面中央有一圆盘状的小白点（就是在蛋黄上看到的小白点）称为胚盘，里面含有细胞核．未受精的卵，胚盘色浅而小；已受精的卵，胚盘色浓而略大。

关键词： 受精 鸡蛋 没有 胚盘

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