Synthetic human embryos created in groundbreaking advance
Scientists have created synthetic
human embryos using stem
cells, in a groundbreaking
advance that sidesteps
the need for eggs or sperm
. Scientists say these model embryos, which resemble
those in the earliest stages of human development, could provide a crucial
window on the impact of genetic disorders and the biological causes of recurrent
miscarriage
. However, the work also raises serious ethical
and legal issues as the lab-grown entities fall outside current legislation
in the UK and most other countries.
tips
synthetic:合成物质;a. 人造的;合成的
stem:干;茎
embryo:胚胎
groundbreaking:开创性的(土地+打破)
sidestep:横跨过去,回避
sperm:精子
egg:卵子
resemble:相似的(semble- = alike,same,相似的,一样的)
crucial:决定性的,严厉的;至关重要的;关键性的
recurrent:复现的
miscarriage:误送;流产(carriage 运输)
ethical:伦理的(ethic 伦理的)
legislation:立法