Cloning is the process of producing the organism genetically identical to its parent. In the past people only could imagine an organism completely identical to its parent and it seemed a work of fiction but cloning has made that science of fiction true. Though some critics point out many ethical issues about cloning, but it has many advantages also.

Benefits to medicine:-
Stem cell therapy has been beneficent to medicine because it has been helpful in treating many dangerous diseases like cancer and hepatitis and heart disease. In the beginning scientists used to believe that the whole embryo will be destroyed in the process of taking out stem cells. But bow stem cells can be developed in the laboratory and even embryos stay in their normal form after the stem cells are taken out from them. Scientists believe that stem cells will be of great significance for the medicine field.

Another benefit of cloning is organ transplantation. Thousands of people in the world are in the need of organs transplantation as they have lost their organs during some accident or due to some other reason. Cloning has allowed the scientists to produce organs in animals and then transplant them into the human body. Pig is the common example used for producing human organs such as liver and kidneys.

Diseases such as cancer can be treated through cloning. During the process, the healthy gene is taken out of the same person or some other person; it is first cloned using the technique of recombinant DNA. When many clones are produced, the desired gene is transferred into the human body through some vectors. These vectors or plasmids attack the diseased cells and either it completely destroy them or block their function.

Genetic modification:-
Now cloning techniques have become so common that it has been possible for the parents to choose the sex of their child. They can select their features and characteristics. For example some parents wish that their child should have the IQ of Albert Einstein, so cloning makes it possible to develop such characteristics.

Benefits to Infertile:-
Cloning techniques have brought good news for the couples who are infertile. Using cloning techniques, the egg of the woman is taken out of the womb; it is fertilized with a foreign sperm. When the egg is fertilized it can be transferred into the womb of mother again. As a result of this procedure, the mother can give birth to a normal child and infertile couples can also have children.

Benefits to Endangered Species:-
The species of animals or plants which have the fear of extinction, they can be saved by cloning. Cloning of Dolly sheep has given hope that such endangered species of plants or animals can be saved with cloning.

Benefits to Drug delivery:-
Scientists have made such plants with cloning methods that drugs can be inserted into the plants. When human consume such plants, they can take drugs along with the nutrients of the food. Many vaccines can also be developed in plants through cloning.

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