Animal Cloning

We do not know how to de-differentiate animal tissues
nor to re-differentiate them for creation of new animals

  • un-differentiated animal cells are called stem cells
    . . -presumedly, de-differentiated animal cells would also be stem cells
    . . -and re-differentiation could produce transplantable organs
    . . -which would be genetically identical to the cell donor
    . . . [and transplant recipient]

    Hypothesis: if diploid DNA were injected into enucleated egg (or zygote)
    the resulting cell would be a 'zygote' genetically identical to the donor
  • Dolly, the sheep
  • cloning of agriculturally important animals
    . . -such as race horses?
    . . -such as mules?
    . . -such as ...?
  • fully 'de-differentiated' cell [zygote] will 're-differentiate' by development
    effectively producing transplantable organs
    . . -which would be genetically identical to the cell donor
    . . . [and transplant recipient]


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    © 2004 Prof. LaFrance, Ancilla College