well am doing a research report on stem cell research and they keep on saying they use embryo so is that like babies that havent been formed yet ???
2007-11-08 13:38:20 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
and plzz dont use like some scientic words on me if i wanted that i could have just looked it up online !!!
2007-11-08 13:45:01 · update #1
An embryo is somewhere between a fertilized egg and a fetus. It can have only a few cells or perhaps hundreds of cells.
The embryos used in stem cell research come from in vitro fertilization. Wikipedia says that it is an embryo until about the 8th week of pregnancy, when they start calling it a fetus. However, the embryos from in vitro fertilization have developed for no more than a few days.
Something you should realize (and your sources might not tell you) is that when parents get in vitro fertilization, they make several embryos, maybe a dozen or so, and pick the best ones to implant into the woman. Of those remaining, the parents can choose to either freeze for the future, or destroy. If they choose to destroy them, they have the option of donating them to research instead. So, embryonic stem cell research uses embryos that would have been killed anyway.
2007-11-08 16:47:42 · answer #1 · answered by jellybeanchick 7 · 0⤊ 0⤋
i could recommend that embryo adoption is unethical. we don't yet comprehend no count number if that's physiological or psychological healthful to a infant's finished progression. that's comparable to human experimentation. i won't settle for that, yet in line with threat i'm merely a Philistine. as to if someone accompanied in this type could have comparable stories to extra classic adoptees, i think so. Genetics performs an important area in maturation, some human beings -yet no longer all - could experience a lost connection. nonetheless, as you will locate in this talk board, there are a huge variety of adoptee perspectives. Embryo adoptees could probably be no much less different. Edit: Puxny makes a great element that warrants talk. I agree that's unethical to get rid of embryos. although, shouldn't we question the morality of a technique that creates embryos with any such tenuous destiny?
2016-10-01 22:42:50 · answer #2 · answered by archuletta 4 · 0⤊ 0⤋
See the first reference, from which the first answerer plagiarized.
For humans, it's their first 8 weeks of life, starting at conception, and ending about 27-36 weeks before birth, on average. See the second reference for a drawing of a human at the transition point between embryo and fetus.
2007-11-10 19:25:44 · answer #3 · answered by Frank N 7 · 0⤊ 0⤋
An embryo is a multicellular diploid eukaryote in its earliest stage of development, from the time of first cell division until birth, hatching, or germination. In humans, it is called an embryo from the moment of fertilisation until the end of the 8th week of gestational age, whereafter it is instead called a fetus.
2007-11-08 13:43:12 · answer #4 · answered by Ryu 2 · 0⤊ 2⤋
yes, its a "baby" that is still in its developmental stages, so basically anywhere during pregnancy from a day, to the last month or so. its also known as a fetus.
2007-11-08 14:37:40 · answer #5 · answered by Anonymous · 0⤊ 0⤋
an embryo is when the zygote (when sperm and egg merge) reaches visible stages of development
2007-11-08 16:17:06 · answer #6 · answered by Elizabeth W 3 · 0⤊ 0⤋
It is an egg in a plant, before it hatches
2007-11-09 05:41:59 · answer #7 · answered by varsity g 1 · 0⤊ 1⤋
aN EARLY STAGE IN THE DEVELOPMENT OF A BABY THAT CONSISTS OF FEWER THAN A HUNDRED CELLS.
2007-11-08 13:56:05 · answer #8 · answered by Renaissance Man 5 · 0⤊ 0⤋