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Getting a New Nucleus
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|Graphic Overview of the Process of Nuclear Transfer||
At this point, researchers took one of these cells and removed its
, containing the
. They also took an egg that had been removed from the
of a second adult sheep and cut out its nucleus. The nucleus that had been removed from the first sheep's
cell was inserted in to the nucleus-free egg. With a tiny jolt of electricity, the two parts
. The egg began dividing just like a fertilized egg.
|What did each sheep provide in making Dolly?|| This egg was
until it had grown into a several-celled
. Then it was implanted in the uterus of a third sheep, a
, who carried the lamb until she was born and became known to the world as Dolly.
|Can you R.A.P. this passage?|
©1999-2000 Center for Electronic Studying, University of Oregon.