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Dolly the sheep

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Dolly the sheep

  1. 1. By,Harshveny Sanderan
  2. 2. • Transgenic animals are animals that have been genetically altered by inserting a transgene into their genomes to express a new trait.
  3. 3. Dolly the Sheep
  4. 4. • Dolly the sheep was born on 5 July 1996 .• 1996, Scientists in Scotland have announced the birth of the worlds first successfully cloned mammal, Dolly the sheep.• was a female domestic sheep.• first mammal to be cloned from an adult somatic cell, using the process of nuclear transfer.• They took a cell from her body and then developed it artificially so that it became a new sheep that was an exact copy of her.
  5. 5. • This used the technique of somatic cell nuclear transfer, where the cell nucleus from an adult cell is transferred into an unfertilized oocyte that has had its nucleus removed. The hybrid cell is then stimulated to divide by an electric shock, and the blastocyst that is eventually produced is implanted in a surrogate mother.
  6. 6. • The sad part of Dolly the Sheep was she died on February 14th, 2003, nearly six years after her birth progressive lung disease was caused because her cells were already old she also had premature arthritis.
  7. 7. Cloning is now considered a promising tool for preservingendangered species and may be important in the futureproduction of transgenic livestock. Thank You
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transgenic

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