Question

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.
QUESTION 4.1
Which sheep is Dolly identical to?
Sheep 1A.
Sheep 2B.
Sheep 3C.
D. Dolly’s father

Answer 1

Sheep 2, Finn Dorset ewe