Question

1) How did cloning experiments begun? Is cloning safe and absolutely successful?

Answer 1

It was started by Hens Dreisch in early 1800 by conducting experiments on animals. A sea urchin was taken in start than the cloning was proceeded to other animals .
It is not completely successful till now, at small level it can be done with accuracy but the clone mostly has some defaulted features and shortened life span 

Answer 2

Explanation:

What is the state of science on cloning of animals? How does this science apply to cloning of people?

To organize its response to those questions, the panel developed a series of subquestions, which appear as the section headings in the following text. For a general overview of the history and current status of animal cloning, see