“胚囊”造句
2024年05月25日 13:05:29
胚囊,普通具有8个遗传上相同的单倍体核.
Embryo has most commonly eitht genetically identical haploid nuclei.
植入之后不久,
胚囊的壁, 即滋养细胞含有两层细胞.
Shortly after implantation the blastocyst wall, the trophoblast, consists of two layers of cells.
存在于
胚囊和胎座中的淀粉粒为胚胎所利用.
Starch grains present in the embryo sac and placenta are utilized by the embryo.