100 likes | 115 Views
Cloning, a process evident in nature and now replicated by scientists, raises ethical debates. Cloning serves purposes such as mass production of desired organisms, replacement of lost limbs, and repopulation of endangered species. From cloning human organs to creating fast racehorses, the implications of cloning on society and ecosystems are profound.
E N D
Nature has been cloning organisms for billions of years. For example, when a strawberry plant sends out a runner (a form of modified stem), a new plant grows where the runner takes root. That new plant is a clone. http://www.blaserco.com/blogs/2006/02/05.html
Scientists have now managed to clone animals by transplanting the genetic information from a specialized cell into an unfertilized egg cell whose genetic information has been destroyed or physically removed.
http://picasaweb.google.com/dieunguocgio/TinhMauTu/photo#5197065734969605826http://picasaweb.google.com/dieunguocgio/TinhMauTu/photo#5197065734969605826
Since Dolly, several university laboratories and companies have used various modifications of the nuclear transfer technique to produce cloned mammals, including cows, pigs, monkeys, mice and Noah. http://animalscience.ag.utk.edu/utcloneproject/news.html http://www.ans.iastate.edu/faculty/htyler/ acc/MentorActivities.htm
The main reason to clone plants or animals is to mass produce organisms with desired qualities, such as a prize-winning orchid or a genetically engineered animal. http://www.windsor.gov.uk/imageresizer/?image=%2Fdbimgs%2Fascot2(2).jpg&action=Header
Other reasons for cloning might include replacing lost limbs or deceased family pets and repopulating endangered or even extinct species. Whatever the reasons, the new cloning technologies have sparked many ethical debates among scientists, politicians and the general public. http://www.nhmshop.co.uk/kids-dinosaur-models /t-rex-model/product.html http://www.bunniehouse.com/rabbittoysplay.htm
Cloning: Yes or No? 1) Human Organs 2) Human Being (Complete) 3) Chickens for food 4) Cows for Milk 5) Really, really good teacher 6) Bacteria for medicine 7) Animal meat (without living animal) 8) Very Fast racehorse