Human cloning can be done through reproductive cloning or therapeutic cloning. Reproductive cloning implants a cloned embryo into a surrogate mother, while therapeutic cloning destroys cloned embryos to harvest stem cells. The cloning process involves removing the DNA from an egg and replacing it with DNA from the organism being cloned. While animals like mice, sheep and monkeys have been successfully cloned, human cloning poses high risks like miscarriage and health issues for the egg donor. The cost of human cloning is between $1.7-2 million. The document discusses pros and cons of using human clones for organ transplants.