英语词汇blastocyst的意思翻译、用法及例句-英汉词典-京师网

blastocyst

noun [ C ] biology specialized uk/ˈblæs.tə.sɪst/ us/ˈblæs.tə.sɪst/

囊胚

a blastula (= the early stage of development, consisting of a layer of cells around an empty space) of the embryo of a mammal

Five to six days after an egg is fertilized by a sperm, a tiny ball of cells develops called a blastocyst. 卵子被精子受精五到六天后，会发育出一个小细胞球，称为囊胚。

The blastocyst cannot support life without being attached to the wall of a uterus.

Related word: blastula

Embryonic stem cells are taken from a blastocyst - a ball of cells that develops within a few days after an egg has been fertilized by a sperm.
There are ethical issues raised by these treatments, such as the disposal of healthy blastocysts.
The study concerned the production of viable bovine blastocysts in vitro.
They looked at the effect of maternal age on early human embryonic development and blastocyst formation.

词汇	blastocyst
释义	blastocyst noun [ C ] biology specialized uk/ˈblæs.tə.sɪst/ us/ˈblæs.tə.sɪst/ 囊胚 a blastula (= the early stage of development, consisting of a layer of cells around an empty space) of the embryo of a mammal Five to six days after an egg is fertilized by a sperm, a tiny ball of cells develops called a blastocyst. 卵子被精子受精五到六天后，会发育出一个小细胞球，称为囊胚。 The blastocyst cannot support life without being attached to the wall of a uterus. Related word: blastula 更多例句 Embryonic stem cells are taken from a blastocyst - a ball of cells that develops within a few days after an egg has been fertilized by a sperm. There are ethical issues raised by these treatments, such as the disposal of healthy blastocysts. The study concerned the production of viable bovine blastocysts in vitro. They looked at the effect of maternal age on early human embryonic development and blastocyst formation.
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