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A copying machine for living beings?
Without any doubt, if there had been elections for the animal of the year 1997, Dolly would have been the winner! Dolly is a Scottish sheep that you see in the photo. But Dolly is not just a simple sheep. She is a clone of another sheep. A clone means: a copy. Cloning means copying ‘from a single master copy’. Scientists succeeded in creating a sheep (Dolly) that is identical to a sheep that functioned as a ‘master copy’. It was the Scottish scientist Ian Wilmut who designed the ‘copying machine’ for sheep. He took a very small piece from the udder of an adult sheep (sheep 1). From that small piece he removed the nucleus, then he transferred the nucleus into the egg-cell of another (female) sheep (sheep 2). But first he removed from that egg-cell all the material that would have determined sheep 2 characteristics in a lamb produced from that egg-cell. Ian Wilmut implanted the manipulated egg-cell of sheep 2 into yet another (female) sheep (sheep 3). Sheep 3 became pregnant and had a lamb: Dolly. Some scientists think that within a few years it will be possible to clone people as well. But many governments have already decided to forbid cloning of people by law.
Which sheep is Dolly identical to?
29Sheep 1.
Dolly's Father
Sheep 2.
Sheep 3
- Q1
A copying machine for living beings?
Without any doubt, if there had been elections for the animal of the year 1997, Dolly would have been the winner! Dolly is a Scottish sheep that you see in the photo. But Dolly is not just a simple sheep. She is a clone of another sheep. A clone means: a copy. Cloning means copying ‘from a single master copy’. Scientists succeeded in creating a sheep (Dolly) that is identical to a sheep that functioned as a ‘master copy’. It was the Scottish scientist Ian Wilmut who designed the ‘copying machine’ for sheep. He took a very small piece from the udder of an adult sheep (sheep 1). From that small piece he removed the nucleus, then he transferred the nucleus into the egg-cell of another (female) sheep (sheep 2). But first he removed from that egg-cell all the material that would have determined sheep 2 characteristics in a lamb produced from that egg-cell. Ian Wilmut implanted the manipulated egg-cell of sheep 2 into yet another (female) sheep (sheep 3). Sheep 3 became pregnant and had a lamb: Dolly. Some scientists think that within a few years it will be possible to clone people as well. But many governments have already decided to forbid cloning of people by law.
Which sheep is Dolly identical to?
Sheep 1.
Dolly's Father
Sheep 2.
Sheep 3
30sS10LT-IIIf-39