Cloning06 - Cloning Cloning Animals "Dolly" 1997...

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    Cloning
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    Cloning Animals “Dolly” – 1997 2005 South Korea Interest and concern Question the meaning of cloning
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    What is cloning? Replication of an individual using cell of  the individual
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    Two types of cloning Twinning Split a developing  embryo soon after  fertilization to give  rise to two or more  embryos Nuclear Transfer Carries DNA of only  one parent Transfer genetic  material from the  nucleus of an adult  who’s genetic  material has been  removed
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    Why Clone? Develop efficient way to alter animals  Adding genes to create drug producing  animals create animal models of human disease Produce whole organs from single cells
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    Why Clone?  Cont. Raise animals having genetically altered  organ suitable for transplanting to  humans
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    History of “Dolly” 40 yrs of research Sheep, goats, mice, cows Remain uncertain whether the genetic  changes in cells to obtain nuclei will  lead to adverse effects on the health of  cloned animals http://www.sciencemuseum.org.uk/ante nna/dolly/index.asp
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    Dolly cont. 1 st  cloned mammal died 2/14/03 6 yrs. Old  Most live 11/12 yrs. Lung infections Born 7/5/96 – birth kept secret At this time scientists – cloning was  biologically impossible – proved wrong
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    Dolly Scientists get Human  Cloning License (NYT 2/9/05) British govt. granted license to clone  human embryos for medical research
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Cloning06 - Cloning Cloning Animals "Dolly" 1997...

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