Cloning of Humans
Should we do this?
Should it happen?
Human cloning for reproductive purposes has seemed inventible. No actual humans have been made yet. Scientists may soon completely sequence the Neandertal genome. Although DNA is damaged during fossilization, an excellent fossil could yield enough molecules to generate a cloneable genome. In the U.S., not all states have banned human reproductive cloning. The United Nations has adopted a nonbinding ban. If human cloning happens, it will occur in a less restrictive area of the world--probably by some wealthy eccentric individual.
This is how scientists show how it can be done
Scientists generate clones by replacing the nucleus with an egg cell from another individual. They have cloned actual human embryos. Even with practiced efforts, some 25 percent of cloned animals have overt problems, Lanza notes--minor slips during reprogramming, culturing or handling of the embryos can lead to developmental errors. Will we recoil in horror or grow to accept cloning as we have in vitro fertilization? Certainly developing new ways to create life will force us to think about the responsibilities of wielding such immense scientific power.