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Homework

Homework. Due Thursday Genetic Engineering Exam Question Sheet (write on sheet – don’t stick in yet). The diagrams show four methods of producing new individuals of animals or plants. Match statements, A , B , C and D , with the diagrams 1– 4 . A fusion of two gametes

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Homework

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  1. Homework • Due Thursday • Genetic Engineering Exam Question Sheet (write on sheet – don’t stick in yet)

  2. The diagrams show four methods of producing new individuals of animals or plants. Match statements, A, B, C and D, with the diagrams 1– 4. • A fusion of two gametes • B fusion cell cloning • C transplanting embryos • D tissue culture A C D B

  3. It may be possible to clone humans. There are a number of reasons why scientists might want to do this. There are a number of reasons why governments might wish to ban human cloning. Decisions must be made about whether human cloning should be allowed. Match sentences, A, B, C and D, with the reasons 1– 4 in the table. A A cloned human could have an identical twin 30 years younger than himself or herself. B Many cloned animals have died early in their lives. C The first scientist to clone a human will be famous. D The techniques needed to clone humans could be used to produce human organs for transplants D C B A

  4. A The diagram shows how it may be possible to clone a human. Match statements, A, B, C and D, with the numbers 1– 4 on the diagram. A A body cell is taken from a donor person. B The embryo is put into the womb of the mother. C The nucleus from the donor cell is put into the unfertilised egg. D The nucleus is taken from an unfertilised egg. D C B

  5. The diagram shows how it may be possible to clone a human. A The process of cloning involves . . . 1 asexual reproduction. 2 fertilisation. 3 fusion of egg and sperm cells. 4 sexual reproduction. B The infant is a clone of Robert because . . . 1 they carry the same genetic information. 2 they have been produced from the same cell. 3 they have the same mother. 4 they have the same nucleus.

  6. C Which of the following is an example of a human clone produced by natural processes? 1 A developing embryo is split into a number of cells and allowed to develop in host mothers. 2 One female gamete is fertilised by one male gamete and the resulting embryo splits into two separate embryos. 3 The nucleus of an egg cell is replaced by the nucleus of an adult cell. 4 Two female gametes are fertilised at the same time by two different male gametes. D Human cloning is currently banned. Which of the following possible problems associated with the cloning of humans is an issue that society must consider before human cloning can be allowed? 1 A human child created by cloning would not have been able to give consent to the procedure. 2 Scientists employed by commercial companies do not publish their research. 3 The procedures used in animal cloning have not been evaluated. 4 There is a high risk of injury to the host mothers in carrying the cloned embryos.

  7. Genetic Engineering – Right or Wrong? Candidates should be able to interpret information about genetic engineering techniques, and make informed judgments about economic, social and ethical issues regarding genetic engineering and GM crops

  8. Banana or Injection? Hepatitis Fact File: • Hepatitis is a disease of the liver, caused by a virus. • It affects more than 2 billion people in the world. • It is 50 times more infectious than HIV • It can be passed from one person to another by sex, sharing needles and childbirth. • Many children in poorer countries are affected. • A vaccine is available, but it costs about £100 per person. • People in poor countries cannot afford the vaccine. • Scientists in New York have been trying to genetically engineer Banana plants to produce the vaccine. • Banana plants make lots of fruit, so the vaccine could be mass produced cheaply (a few pence per person)

  9. Scientists Could we? Ideas! Evidence Who decides? Government Should we allow it? Society Vote in government Individuals Decide for themselves based on beliefs

  10. Evaluating Genetic Engineering

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