1·They are used for identification because they are fully formed 24 weeks after fertilisation and do not change throughout our lives.
之所以指纹被用来识别身份，是因为在受精完成24周后指纹就会完全形成，并且在人此后的一生都不会改变。
2·But scientists know from in vitro fertilisation research that higher levels of glucose encourage the growth and development of male embryos while inhibiting female embryos.
但是，经由试管受精研究，科学家们知道，较高的葡萄糖水平会刺激男性胚胎的生产，而且会对女性胚胎的形成产生抑制作用。
3·The UK Human Fertilisation and Embryology Authority was founded 20 years later.
20年后，英国人类受精和胚胎管理局成立。
4·However every scientist working on ips cells insists research on conventional embryonic stem cells derived from surplus embryos after in vitro fertilisation treatment must continue.
而每一位从事“诱导多能性”细胞研究的科学家都坚持认为，源自体外受精疗法多余胚胎的传统胚胎干细胞研究，必须继续。
5·It is known from in vitro fertilisation research that high levels of glucose can enhance the growth and development of male embryos but inhibit female ones.
高水平的葡萄糖能提高男性胚胎的生长和发育但是抑制了女性胚胎，这在体外受精的研究中广为人知。