CLONING- EXERCISES
1
ANSWER THE FOLLOWING QUESTIONS IN YOUR OWN WORDS AS FAR AS POSSIBLE!
What information does the nucleus of a cell contain? Why is it so important? ______________________________
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What is a donor animal? ________________________________________________________________________
Why don’t clones grow in the same way? ___________________________________________________________
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When did cloning animals start? __________________________________________________________________
Which mammal was the first to be cloned in 1996? ___________________________________________________
Which other animals have been cloned successfully? _________________________________________________
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In which ways can cloning animals and plants bring advantages for people? _______________________________
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What are stem cells? Why do doctors want to clone them? ____________________________________________
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What do critics of human cloning say? _____________________________________________________________
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How does cloning occur in nature? ________________________________________________________________
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What is therapeutic cloning? _____________________________________________________________________
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TRUE OR FALSE
T
Scientists do not need DNA to produce clones.
Many reproduced clones do not survive the cloning process.
Doctors can use stem cells to develop special tissue used to replace damaged organs.
Cloning cannot occur naturally, only in laboratories.
Animals are used in the cloning process in order to produce drugs and other useful things.
Parkinson’s disease cannot be cured through therapeutic cloning.
The first mammal that was cloned successfully was a frog.
F
CLONING- EXERCISES
2
MATCH THE WORDS ON THE LEFT WITH THE DEFINITIONS ON THE RIGHT!
A
advantage
animal that drinks milk from its mother’s body
when it is young
B
mammal
feature, quality
C
reproduce
pair of children or animals born to the same
mother at the same time
D
nucleus
the world around us
E
twin
place where experiments are carried out
F
resistant
change in the genetic structure of an animal or
plant that makes it different from others of the
same kind
G
laboratory
use instead of something else
H
DNA
good side of something
I
embryo
something living
J
donor
material that forms animal and plant cells
K
creature
copy, duplicate
L
bacteria
special cell that can produce other cells that
perform certain functions
M
breakthrough
strong, tough
N
mutation
person with a disease
O
tissue
cows
P
characteristic
animal or person who gives an organ or blood to
another person or animal
Q
stem cell
new, important discovery
R
patient
animal or human that has just started to grow and
is not born yet
S
scientist
medicine
T
environment
material that carries genetic information
U
cattle
person who works in a lab
V
drug
small living things, some of which are dangerous
and can cause diseases
W
replace
central part of a cell
CLONING- EXERCISES
3
CROSSWORD
1
3
2
4
5
6
7
8
9
10
11
12
13
14
15
16
EclipseCrossword.com
Across
Down
1.
5.
8.
9.
12.
14.
2.
3.
16.
exactly the same
type of mammal that was the first to be cloned
central part of a cell
unborn baby that has just started to grow
split into two or more parts
very small living things, some of which can cause
diseases
the world around us
4.
6.
7.
10.
11.
13.
15.
material that forms animal or plant cells
animal that drinks milk from its mother when it is
young
person or animal that gives an organ to others
disease which affects the brain and makes it difficult
for older people to move or talk (only main word)
to keep animals together in order to produce new
ones with special features
special parent cell, from which you can grow other
cells (2 words)
continue to live, not die
material that carries the genetic information of a
creature
one of two children or animals born to the same
mother at the same time
CLONING- EXERCISES
4
How Therapeutic Cloning Works
Complete the diagram with words from the box! There are more words than you will need!
bacteria – clone - code – damaged - DNA - egg – divides - female – healthy –
male – nerves - nucleus - organs - produces - reject - stem - tissue
1
Skin cell is taken out of a
patient‘s body. The
______________, which
contains the patient‘s
genetic _____________,
is removed
6
Grown ______________ cells are
inserted into patient‘s body where
the new ____________ cells
replace damaged body tissue.
The patient would not __________
the cells because they contain
his/her _____________
3
2
Patient‘s nucleus is
inserted into the
___________ cell
Nucleus from a
____________ egg
cell is removed
4
Egg ___________
and creates stem
cells
5
______________ cells are grown
in the lab and can be turned into
tissue types for certain _________ ,
like heart or nerve cells
CLONING- EXERCISES
5
Essay – Cloning
Cloning is a much-discussed topic in the scientific world. Write an argumentative essay in
which you explain why some groups of people (scientists, doctors etc..) are in favour of
cloning and others are strongly opposed to it. Offer convincing arguments for each side
and give your own opinion.
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