词族 · blastula
词形变化
英语词源
- blastula (n.)
- embryonic state, 1875, Modern Latin, from Greek blastos "sprout, germ" + diminutive ending -ula (see -ule).
权威例句
- 1. It enter the late blastula stage in 6 h 50 min.
- 6小时50分进入低囊胚期.
- 2. The cells of the blastula , called blastomeres, also each receive a full diploid set of chromosomes.
- 这些囊胚细胞, 称卵裂球, 每个细胞都有一套二倍体染色体组.
- 3. The outer layer of a blastula that gives rise to the ectoderm after gastrulation.
- 外胚层囊胚的外层,在原肠胚形成之后生后外胚层组织.
- 4. However , content of the dissolvable protein and amino acid during gastrula stage during blastula stage.
- 总氨基酸含量在胚胎发育早期下降较快, 胚胎发育至后无节幼体期氨基酸含量下降幅度变缓.