Cloning is the process of producing similar populations of genetically identical individuals. There are two ways of cloning.
Artificial Embryo Twinning
An early embryo is split into individual cells, which are then allowed to divide and develop for a short period of time. The embryos are then developed in a surxrogate mother.
Somatic Cell Nuclear Transfer
Transfer the nucleus from the somatic cell to the egg cell. After few chemical tweaks, the egg cell, with its new nucleus, is like a freshly fertilized egg. It develops into an embryo, which is implanted into a surrogate mother.
There are a number of ethical and religious issues surrounding cloning, and many nations have specifically banned it, discouraging research into procedures which are designed to result in cloned humans.Thus, there are many factors deciding whether human cloning is beneficial to the society.
2.1 History of cloning

1800's - Wilhelm Roux devolped half an embryo.
Scientists believe that they may be able to treat heart attack victims by cloning their healthy heart cells and injecting them into the areas of the heart that have been damaged.
Infertility
With cloning, infertile couples could have children. Human cloning could make it possible for many more infertile couples to have children than ever before possible.
Plastic, reconstructive, and cosmetic surgery
Silicone breast implants and other cosmetic procedures that may cause immune disease should soon be over. With the new technology, instead of using materials foreign to the body for such procedures, doctors will be able to manufacture bone, fat, connective tissue, or cartilage that matches the patients tissues exactly. Victims of terrible accidents that deform the face should now be able to have their features repaired with new, safer, technology. Limbs for amputees may be able to be