pole nucleus

• 极核

pole nucleus的用法和样例：

例句

1. 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.
   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。