by Heidi Noonan
Cloning is the creation of an Organism that is an exact genetic copy of another. This means that every single bit of DNA is the same between the two!
Dolly the sheep (above photo)
The Ewe named Dolly was the first mammal to have been successfully cloned from an adult cell.Dolly was cloned in 1996 from a cell taken from a 6 year old ewe.l Dolly was created after ten years of unsuccessful attempts to clone a mammal from an adult cell. She created at the Roslin Institute in Scotland and lived their until her death seven years later.
Scientists at the moment are trying to create a human clone which is not only a difficult and risky task but involves a lot of controversy on the topic about the ethics behind it.
There are many arguments for and against Cloning, whether cloning is the right thing to do.
Arguments against cloning include:
· If a human clone were ever born the clone would be an identical copy of someone else which could cause problems such as loss of identity.
· A very large percentage of cloning efforts end in failure. For example, it took 277 attempts to clone Dolly the sheep.
· Cloning will stop genetic improvements to a species. This is because genetic improvements usually occur through natural reproduction, which result in a mixing of the genes of the mother and father.
Arguments for cloning include:
· The cloning of endangered species. The first semi–successful effort was made at this with a gaur (a large wild ox from India and south–east Asia), with a baby bull gaur being born in January of 2001. The animal only survived for 48 hours.
· Cloning could be used to help people who need organ donors. Such as victims of Leukaemia as there is a shortage of donors, by cloning organs could save many lives.
· And lastly cloning could enable people to raise an identical child after an unfortunate death.