Biology » Plant and Animal Tissues » Applications Of Indigenous Knowledge And Biotechnology

Ethical Issues and Legislation

Ethical Issues

The use of science in cloning has created a lot of debate and controversy. Mainly, the debate is whether the methods used for cloning result in cells that have the potential to form full-grown organisms. The key ethical questions that arise are therefore:

  • What to do about fused cells (known as embryos) that are not used for either therapeutic or reproductive purposes?
  • By selecting certain genes for reproduction using cloning are we not favouring certain types of characteristics over others?
  • Much of the cloning is conducted by private companies and this raises concerns that the public might not be able to benefit from the research being conducted.
  • In the case of human cloning, if the embryos created are alive, do they have the rights of a normal human being?
  • Are there better alternatives to stem cell research?

Legislation Around Stem Cell Research

legislation

Due to the issue of stem cell research being so controversial, different countries have very different laws governing how it is to be conducted.

Some European countries such as Finland, Sweden, Belgium, Greece, Britain, Denmark and Netherlands allow stem cell research using human embryos while some such as Germany, Austria, Ireland, Italy and Portugal do not.The United States of America has divided opinions on stem cell research, with some of its States providing funding for stem cell research while others do not. India, Iran, South Korea, China and Australia are supportive of stem cell research. South Africa continues to support stem cell research.

Did You Know?

In June 2012, the South African plastic surgeon, Dr Ridwan Mia, led a breakthrough surgery, saving the life of a three year old burn victim by transplanting skin cells cloned from the victim’s cells. Pippie Kruger, the burn survivor, initially had a \(\text{10}\%\) chance of survival. However, the doctors obtained some of her skin cells, transported them to a laboratory in the USA, where they were cloned in order to produce millions of extra cells. These cells were transplanted into Pippie, resulting in the complete success of her skin grafting surgery.

Potential Applications of Cloned Animals

Reproductive cloning may allow copies of animals to be made for benefits in agriculture and medicine. Sheep such as Dolly have been cloned to overproduce a high quantity of a protein important for blood clotting in humans. It may soon be possible to clone extinct species of animals.

Drawbacks of cloning animals may include the fact that most cloned species are unable to develop into healthy animals. Dolly for example was only one of \(\text{277}\) cloned embryos. There have been significant health effects of cloning including increase in birth size and a variety of defects in vital organs such as the liver, brain and heart.

Ethical Biotechnology

  • In medicine modern biotechnology finds promising applications in such areas as: drug production, pharmacogenomics (how a person’s genes affects their response to drugs), and genetic testing (or genetic screening): techniques in molecular biology detect genetic diseases.
  • To test the developing foetus for Down syndrome, amniocentesis and chorionic villus sampling can be used.

Further Research:

If you are interested, you can do some research to find out a step-by-step process showing how to genetically engineer a plant and bacterium. Find out about some of the latest issues in biotechnology and their political, economic and cultural implications.

 

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