英文: 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: 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。 更详细...
英文: Sporogonium The sporophyte generation in mosses and liverworts. It develops from the zygote
and comprises the foot, seta, and capsule. The sporogonium is parasitic on the gametophyte generation.
中文: 孢子体：为苔藓和地钱的孢子体世代具有。由受精卵发育而来，包括基足、柄和孢蒴。孢子体是寄生在配子体上的。 更详细...
英文: The cell lineage of a structure traces the successive stages that the cells pass through from the time of their formation in the zygote
to their appearance in the mature functional structure.
中文: 细胞谱系在决定细胞表型中起重要作用,细胞谱系的知识对于理解执行发育选择的机制是十分必要的。 更详细...
英文: The back-cross results of heterozygote
F with its parents suggested that the separation of progenies F(SR×S♂and RS×R♂) was consistent with Mendel's single gene inheritance model.
英文: the back-cross results of heterozygote
F with its parents suggested that the separation of progenies F (SR♀× S♂ and RS♀× R♂) was consistent with Mendel’s single gene inheritance model.
中文: 对F 杂合子