What information does the nucleus of a cell contain? Why is it so important? What is a donor animal? Why don t clones grow in the same way?

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1 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? What is a donor animal? Why don t clones grow in the same way? When did cloning animals start? Which mammal was the first to be cloned in 1996? Which other animals have been cloned successfully? In which ways can cloning animals and plants bring advantages for people? What are stem cells? Why do doctors want to clone them? What do critics of human cloning say? How does cloning occur in nature? What is therapeutic cloning? TRUE OR FALSE T F 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.

2 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

3 CLONING- EXERCISES 3 CROSSWORD EclipseCrossword.com Across 1. exactly the same 5. type of mammal that was the first to be cloned 8. central part of a cell 9. unborn baby that has just started to grow 12. split into two or more parts 14. very small living things, some of which can cause diseases 16. the world around us Down 2. material that forms animal or plant cells 3. animal that drinks milk from its mother when it is young 4. person or animal that gives an organ to others 6. disease which affects the brain and makes it difficult for older people to move or talk (only main word) 7. to keep animals together in order to produce new ones with special features 10. special parent cell, from which you can grow other cells (2 words) 11. continue to live, not die 13. material that carries the genetic information of a creature 15. one of two children or animals born to the same mother at the same time

4 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 2 3 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

5 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.