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Cloning and Why We Should Stop It!




Home
Table of Contents
What Is Cloning and the History of Cloning
How Cloning is Done by Artificial Embryo Twinning and Somatic Cell Nuclear Transfer
How the First Animal Cloned "Dolly"
Recombinant DNA Technology or DNA Cloning
Reproductive Cloning and Therapeutic Cloning
Pictures of Different Types of Cloning
Medical Problems
Problems During Later Development/ High Failure Rates
Ethical, Legal, and Social Issues of Cloning
The Risks of Cloning
Arguments Against Cloning
Question that might just change your mind about Cloning
Cloning your own Mouse
Cloning Quiz # 1
Cloning Quiz # 2
References

How the First Animal Cloned "Dolly"

Dolly the Sheep was the first mammal cloned from adult DNA. Dolly was born July 6, 1996 but her birth was not announced until 1997. She was created using the Reproductive Cloning and Somatic Cell Nuclear Transfer styles. Reproductive Cloning is used to create an animal that has the same nuclear DNA as another existing or previously existing animal. Scientists transferred genetic material from the nucleus of a donor adult cell to an egg with out a nucleus. The egg will have no genetic material. The egg that now has the DNA from the donor will receive a chemicals treatment to help the cell division. After all that is done and the cell has reached the right stage it will be transferred to the uterus of a female host who will carry until birth. 

 

< http://ornl.gov/sci/techresources/Human_Genome/elsi/cloning.shtml >

 

 
 

dolly.jpg


If Dolly was created using Nuclear Transfer, it would not be an identical clone of the donor animal. Only Dollys nuclear DNA would be the same as the donors. The clone would have some of the genetic materials from the mitochondria. The Mitochondria has it own short segments of DNA and which helps play a big role in the aging process.

 

Cloning Dolly the Sheep was a big step for the cloning scientist because it proved that the genetic materials from an adult cell can be reprogrammed to create a new organism. 

 

 

< http://ornl.gov/sci/techresources/Human_Genome/elsi/cloning.shtml >

 

Dolly was able to reproduce and had six offspring of her own but no one has heard about their health after their mother was put down.
 
 
 

The Scientists did not plan for what happened for what happened to Dolly a couple of year after her birth. Dolly started to suffer from lung cancer and crippling arthritis which forced them to put her down by lethal injection on February 14, 2003. They did not think ahead about the problems that could occur to Dolly and made Dolly a risk to not only her life but the lives of her offspring and the lives of us humans.
 
 

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