As a mother, I am appalled that scientists like Parker are making decisions that will affect the future of my children. Parker's immoral and thoroughly self-serving position is alarming to me as a human being and as a sudent of biology. If Parker's excessive ideas about cloning are ever widely accepted, then I fear for the fate of humankind. Answer a question that was posed in the introduction. I say yes.
Cloning is a necessary step in human technological development.
As more religious fundamentalists and other morally self-righteous people insist that it be heavily regulated, the potential benefits of cloning are ignored. If you've told a story or used an image in the beginning of the piece, consider making use of elements of the story or image in the closing. Look to see if it would be effective to ask the reader to do something, but avoid being moralizing . Don't add any new information in a conclusion.