1. Stem cells are made from adult human cells
2. These are introduced into
an early-stage sheep embryo
Cell
mass
3. Hybrid embryo is returned to sheep
carrying a small fraction
of human cells
The ultimate goal
To develop sheep with selected, fully transplantable, human organs
1. Stem cells are made from adult human cells
2. These are introduced into
an early-stage sheep embryo
Cell mass
3. Hybrid embryo is returned to sheep carrying a small fraction of human cells
The ultimate goal
To develop sheep
with selected, fully transplantable,
human organs