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One fuses with the egg cell to form a zygote while the other either degenerates or, in certain angiosperms, fuses with the polar nuclei to give the primary endosperm nucleus. |
中文意思: 一个与卵细胞结合形成受精卵,另一个要么退化,要么在某些被子植物中与极核结合形成初生胚乳核。 |
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