Hello, Lead082656. The debates of the embryonic stem cell research are pretty heavy to digest. There's always two sides to the debate: do not destroy a human life to research it and the other one would be to take the stem cells of the embryo and find a cure for other people's diseases and illnesses. More people want to argue the first one instead of the second one, which is why there is more debating going on instead of research. I hope I helped!! If you have more questions then let me know and I will help you as much as I can. Have a great day!!
Answer:
(These are sample answers so I don't recommend copy and paste)
Scientists do not fully understand how stem cells proliferate and differentiate.
There are ethical concerns debated when using embryonic stem cells for research.
Scientists do not know the signals used by stem cells and if they are similar when forming specialized cells; they are unable to grow specialized and unspecialized cells in the lab.
It is a newer technology with many questions left to answer.
