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| 双受精 (foecundatio duplex) | |||
| 双重受精被子植物的一种特有的受精方式,除雄配子与雌配子结合形成二倍体合子核外，尚有雄配子与两个极体结合而形成三倍体的胚乳核 | |||
| 双受精 | |||
| 重复受精 | |||
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