GM Crops
Easy to overlook this one.
What you should know
- What are GM crops? – crops gown from seed whose genetic make-up has been changed to promote better growth, greater yield and resistance to pests.
- Originally devised as a solution to the world’s food problems. It would enable crops to be grown in areas of drought etc.
- Industry and especially some American multinational companies have done rather well out of this. They produce the seed and new supplies have to come from the original source.
Advantages
- Harvests can be predicted and yields ensured.
- Bigger and better yields.
- Unblemished crops – especially important in the case of fruit, potatoes, carrots etc.
- Even the taste can be controlled.
Disadvantages
- The long-term effects on the soil and the environment, especially wildlife are unknown.
- Questions have arisen about allergies and long-term impact on humans.
- Poverty and malnutrition is certainly made worse by poor food, but other factors such as political stability, social awareness and lack of education also contribute to mass starvation.
- There is a natural reserve when it comes to “messing about” with the food that we eat. The term “Frankenfood” was adopted by the British Press about GM crops and protesters attacked field trials in the UK.
Genetic Engineering in animals and humans
Remember Dolly the sheep
Dolly was the first and famous example of a cloned animal, created in Edinburgh in 1997 .
Human stem cell research
Embryonic stem cells– as a result of IVF, large numbers of spare stem cells may be obtained from a woman and these may be used in stem cell research. Embryonic stem cells must be used quickly – up to 11 days – then they must be discarded. They are useful because they have the potential to grow into any body cell.
Adult stems cells– these may be removed from an adult without any complications at any time. These stem cells can only be grown into the organ from which they were extracted. Be aware that new research into this area has revealed that scientists have been successful in rewinding adult stem cells taken from certain areas of the body and converting them back into pluripotent embryonic-like stem cells. If this line of experiment continues to be followed then all the ethical reservations about the use of stem cells will be avoided.
Genetic manipulation
Somatic cell gene therapy
Genes of a particular organism are modified, but the modification is not passed on to the next generation.
Diabetes sufferers can be given some gene treatment to control the production of insulin and cure the disease.
Germ line therapy
Germ-line cells are reproductive cells. These can be altered to combat and eradicate diseases. The alterations are transferred to the next generation and will consequently affect the human gene pool.
Haemophilia is a hereditary disease that could be eliminated altering the genes that carry the disease, but there is much discussion about which ailments should be tackled.
Enhancement
This involves “enhancing” or “improving” an individual by manipulating his or her genes. But what counts as an improvement? The issue of designer babies is still mainly theoretical. In theory though parents could arrive with a wish list of talents they might want for their expected child.
Eugenic-genetic engineering
This is the improvement of a whole nation or race through genetic engineering. The associations with this idea are unhappy ones. Two examples – there were the aims of Hitler and his personality developers! and other nations have sought to practise compulsory sterilisation of the mentally unfit.
Cloning
This exists in two forms therapeutic and reproductive .
Therapeutic cloning
This is cloning which is intended to produce a human embryo that can be used to generate stem cells for medical purposes. Such embryos are not allowed to develop beyond 14 days , the point at which the primitive streak (and thus the ability to register pain) would be formed.
Reproductive cloning
The process is the same as for therapeutic cloning but the cloned embryo is placed in the womb and allowed to develop as a normal foetus and eventually a person. There are two reasons for permitting this:
- The cloned person could then provide whole organs, tissues and blood in the case of cancer
- It could be a replacement for a person killed prematurely or as alternative to childlessness.
This kind of cloning is currently illegal in the UK.
RELIGIOUS ETHICS
The sanctity of life is a key theme and this means that human life has intrinsic value.
Roman Catholic Ethics
Using an embryo for the sake of another human is wrong as an embryo has intrinsic worth. But there is no similar objection to using adult stem cells. Natural Law is positive about advances in medical science that improve human life, but never at the expense of human life.
On the other hand Roman Catholicism claims that certain acts are intrinsically evil.
There are those who suffer evil eg blindness of mental handicap. Correcting these impairments is therefore a good thing, but the use of genetic engineering to achieve this is ruled out. The Catholic Church rules out embryo research as being unnatural and destroying life
Other Churches
Situation Ethics based on agape still holds great sway.
Joseph Fletchersaw a human being as a “maker, selector and designer” who acts morally when in control of genetics. He was not opposed to IVF and it could be said that embryo research is the most loving thing to do with spare embryos, when the alternative is simply throwing them away.
However creating embryos for research is more difficult to justify.
NATURAL LAW
Basic principle. Everything is created for a purpose and when this is examined by human reason, a person should be able to judge how to act in order to find ultimate happiness.
Natural Law has the primary precept of self-preservation and from this the secondary precept is that there should be no embryo research because it destroys life.
Some research though is acceptable because it preserves life by curing diseases.
UTILITARIANSM
Basic principle maximizing of happiness and the minimising of pain
Utilitarians would not accept that life has absolute value and this should be upheld at all costs. Instead Utilitarianism attempts to assess each individual situation on its own merits to promote the greatest happiness. But Utilitarianism only works if it is possible to access the results of genetic engineering and embryo research and decide whether or not most people have found benefit. From a utilitarian point of view, it is better to save many lives in the future by embryo research at the cost of a few embryos now. Bentham’s Hedonic calculus can only be applied to those who suffer. An embryo would not be classed as a living being and cannot feel pain so they are not measured in the equation.
KANT’S ETHICS
Basic principle – the categorical imperatives.
To apply the categorical imperative to genetic engineering and embryo research would be difficult. There seems to be no universal principle application.
Similarly the second precept about not using people as a means would only apply if it could be proved that the embryo is a person. Kant was not clear on the moral status of embryos.
However Kant’s idea or respect for persons and the requirement for human rights to be respected, that informed consent should be obtained would mean that genetic medicine, testing screening and adult stem cell research would be seen as truly humanising.