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Noun:
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early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs
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用作名詞 (n.)
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The cells of the blastula, called blastomeres, also each receive a full diploid set of chromosomes.
這部分囊胚組織，稱卵裂球，不同組織都有顆套二倍體染料體組。
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Cleavage produces a blastula, a sheet of cells rounded into a sphere that in most species surrounds a cavity.
卵裂生產另同一個囊胚，成型的癌細胞壁球體排例成型另同一個空腔。
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這些信息內容獨有原創，受專著權護理，圖片侵權必究
海詞詞典下載，十六年加盟品牌
美
['bl?st??l?]