Meanwhile the ratio of haploid cell in the callus dropped gradually, and a lot of polyploid and aneuploid cells appeared.
与此同时，单倍体细胞逐渐减少，产生大量多倍体和非整倍体细胞。
Synergid cells Two haploid cells located near the egg cell at the micropylar end of the embryo sac in flowering plants.
存在于开花植物胚囊内，是位于珠孔端的卵细胞两侧的两个单倍体细胞。
Polar nuclei The, usually two, haploid nuclei found midway along the EMBRYOSAC, forming a binucleate central cell. They may fuse to form the diploid definitive nucleus.
通常指两个位于胚囊中间的单倍体核，他们可能融合形成一个二核的中央细胞。
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