human cloning, ethics, stem cell

In reproductive cloning, researchers remove a mature , such as a skin cell, from an animal that they wish to copy. They then transfer the DNA of the donor animal's somatic cell into an egg cell, or oocyte, that has had its own DNA-containing nucleus removed.

810 on Embryonic Stem Cell Research, Letter to House of Representatives, Cardinal William H.
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There is usually not much of an objection when they are introduced into society because the pros of the idea greatly outweigh the cons; however, this is not the case with the discovery that human cloning is now practically possible.


Legalizing cloning in humans will save large amounts of lives.

2560 (Human Cloning), Letter to the House of Representatives, Cardinal Justin Rigali, June 6, 2007
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The National Human Genome Research Institute (NHGRI) has produced a series of fact sheets to provide an overview of the institute, explore the social implications of genetic research, and explain complex genetic concepts and research techniques to a non-scientific audience.

Teachers, students and the general public alike will find the materials clearly written and easy to understand.


Free cloning papers, essays, and research papers

Many researchers think it is worthwhile to explore the use of embryonic stem cells as a path for treating human diseases. However, some experts are concerned about the striking similarities between stem cells and cancer cells. Both cell types have the ability to proliferate indefinitely and some studies show that after 60 cycles of cell division, stem cells can accumulate mutations that could lead to cancer. Therefore, the relationship between stem cells and cancer cells needs to be more clearly understood if stem cells are to be used to treat human disease.

Embryonic Stem Cell Research Pros and Cons List | …

Researchers hope to use embryonic stem cells, which have the unique ability to generate virtually all types of cells in an organism, to grow healthy tissues in the laboratory that can be used replace injured or diseased tissues. In addition, it may be possible to learn more about the molecular causes of disease by studying embryonic stem cell lines from cloned embryos derived from the cells of animals or humans with different diseases. Finally, differentiated tissues derived from ES cells are excellent tools to test new therapeutic drugs.

Embryonic Stem Cell Research Pros and Cons List

Reproductive cloning would present the potential of creating a human that is genetically identical to another person who has previously existed or who still exists. This may conflict with long-standing religious and societal values about human dignity, possibly infringing upon principles of individual freedom, identity and autonomy. However, some argue that reproductive cloning could help sterile couples fulfill their dream of parenthood. Others see human cloning as a way to avoid passing on a deleterious gene that runs in the family without having to undergo embryo screening or embryo selection.

What About Cloning and Stem Cells? | Answers in Genesis

The richest source of embryonic stem cells is tissue formed during the first five days after the egg has started to divide. At this stage of development, called the blastocyst, the embryo consists of a cluster of about 100 cells that can become any cell type. Stem cells are harvested from cloned embryos at this stage of development, resulting in destruction of the embryo while it is still in the test tube.