In cases of fertile couples in which one member carries a gene for a disease, cloning using a cell from the other member could assure that the couple has a healthy child of its own. Some U.S. legal experts claim that preventing a couple from choosing cloning as a method of reproduction could be unconstitutional. Scientists and ethicists who favor human cloning research also argue that cloning may provide a better understanding of the nature of genetic diseases and aid in the production of embryos from which cells could be obtained to grow various organs for organ transplants. Cloning might lead to an attempt to improve the human race according to an arbitrary standard. Cloning could result in the introduction of additional defects in the human gene pool.
Cloning is unsafe.
There are too many unknown factors that could adversely affect the offspring. A clone might have a diminished sense of individuality. A clone might have fewer rights than other people. Doctors might use clones as sources of organs for organ transplants. Cloning is at odds with the traditional concept of family.