Answer:
Although we do know that stem cell research is very controversial, but one cannot deny the fact that by far it is most effective technique for treating those diseases whose cure is otherwise impossible.
Regenerative medicines and therapeutic cloning are very effective to control many dreadful diseases.
By studying stem cells, scientists can study how to treat an ailment whose cure was otherwise unknown. As diseases like cancer occur due to inappropriate divisions, study of stem cells enable scientists to learn the mechanism of differentiation and how it gives rise to cancer.
One of the methods through which stem cells can be obtained is the method of induced pluripotency. By this method, pluripotent stem cells can be made from adult stem cells.
