Read the newspaper article and answer the questions that follow. 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 5 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 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 30 decided to forbid cloning of people by law. Source: Tijdschrift van de Eenhoorn Educatief (Brussels Onderwijs Punt): March 1997.
Read the newspaper article and answer the questions that follow.
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 5 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 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
30 decided to forbid cloning of people by law.
Source: Tijdschrift van de Eenhoorn Educatief (Brussels Onderwijs Punt): March 1997.
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