Human Cloning

 

Human cloning is the creation of a genetically identical copy (or clone) of a human. The term is generally used to refer to artificial human cloning, which is the reproduction of human cells and tissue. It does not refer to the natural conception and delivery of identical twins. The possibility of person cloning has raised controversies. These ethical concerns have prompted several nations to pass laws regarding human cloning and its legality.

Cloning is the process of taking genetic information from one living thing and creating identical copies of it. The copied material is called a clone. Geneticists have cloned cells, tissues, genes and entire animals. 

Although this process may seem futuristic, nature has been doing it for millions of years. For example, identical twins have almost identical DNA, and asexual reproduction in some plants and organisms can produce genetically identical offspring. And scientists make genetic doubles in the lab, though the process is a little different.

How cloning works ?

- There are three different types of cloning, according to the National Human Genome Research Institute (NHGRI):

*Gene cloning, also called DNA cloning, creates copies of genes, or segments of DNA.

*Reproductive cloning makes duplicates of whole animals.

*Therapeutic cloning creates embryonic stem cells, which are used to create tissues that can repair or replace damaged tissues. 

Human Clone ,

While cloning a human is currently illegal in most parts of the world, cloning stem cells from humans is a very promising field of research. Stem cells can be reprogrammed to become any type of cell needed to repair or replace damaged tissue or cells in the body. Stem cell research has the potential to help people who have spinal injuries and other conditions.

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