Steve Connor: This procedure can't be ethical until it is proven safe
Wednesday 22 April 2009
The ethics of human cloning centre on whether the technique is medically safe, both for the mother and, more importantly, for the child, because of the risk that cloned embryos may have severe congenital defects and other developmental problems.
Cloning studies carried out on animals since the birth of Dolly the sheep in 1996 strongly suggest that the procedure is unsafe as a form of fertility treatment.
Numerous studies have found that cloned animals – if they develop in the womb after being transferred at the stage of early embryos – suffer a high risk of growth deformities, metabolic problems and of being dangerously oversized in the womb, leading to birth complications.
This is the principal reason why most medical ethicists support the legal ban on human reproductive cloning in Britain. However, some also take the view that this is the only reason, and that human cloning would be ethical if the medical dangers could be shown to be on a par with the risks of a natural pregnancy and birth.
But another ethical issue is raised by the prospect of using cloning to help grieving parents or relatives to bring back a deceased loved one "from the dead". A clone is like an identical twin; he or she is not an exact replica in terms of psychological or emotional make-up.
It would therefore be invidious for a scientist to suggest otherwise to a parent who is desperate to bring back their dead child. For most people, however, cloning represents the ultimate "yuk factor". It appears abhorrent because it is unnatural and bypasses the age-old process of sexual reproduction, whereby a sperm and egg fuse to form a fertilised egg – the fruit of the physical union of a man and a woman.
But ethically, a cloned human baby would be no different to one that is produced naturally. This is why many people would have no qualms about agreeing to the creation of a clone – providing the process is shown to be safe.
That's some guestlist! Stunning images show huge dynastic wedding between Ultra-Orthodox Jewish families which attracted 25,000 guests
Terror at Woolwich barracks: Attacker tried to behead and disembowel British soldier
Anonymity order lifted for triple child killer David McGreavy jailed in 1973
World news in pictures
Far-right French historian, 78-year-old Dominique Venner, commits suicide in Notre Dame in protest against gay marriage
- 1 Terror at Woolwich barracks: Attacker tried to behead and disembowel British soldier
- 2 Mothers' diets may harm IQs in two-thirds of babies
- 3 Gay couple beaten in park urge MPs to moderate language on gay marriage
- 4 After woman sells virginity for $780,000, here are the results of our prostitution survey
BMF is the UK’s biggest and best loved outdoor fitness classes
Find out what The Independent's resident travel expert has to say about one of the most beautiful small cities in the world
Win anything from gadgets to five-star holidays on our competitions and offers page.