18 exam-style questions · Biology only (B): not in Science (Double Award). Write your answer, check it against the mark scheme and tick the points you earned. Your marks stay on this device. Your writing is not saved.
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Plan it with CORMMSS: Design an investigation (Logic Lab).
6.19B Cloning mammals
Exam question
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Describe how Dolly the sheep was cloned.
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Total for this question: 5 marks
6.19B Cloning mammals
Exam question
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Which sheep was Dolly genetically identical to?
(1)Total for this question: 1 mark
6.19B Cloning mammals
Exam question
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Explain why the egg cell nucleus is removed.
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Total for this question: 2 marks
6.19B Cloning mammals
Exam question
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Explain why an electric shock is used.
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Total for this question: 2 marks
6.19B Cloning mammals
Exam question
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Explain why the cloned embryo has a diploid number of chromosomes.
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Total for this question: 2 marks
6.19B Cloning mammals
Exam question
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Suggest and explain an advantage of cloning farm animals.
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Total for this question: 2 marks
6.19B Cloning mammals
Exam question
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Suggest and explain a disadvantage of cloning farm animals.
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Total for this question: 2 marks
6.19B Cloning mammals
Exam question
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Explain why many attempts are needed to produce one clone.
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Total for this question: 2 marks
6.19B Cloning mammals
Exam question
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State the name of the process used to clone Dolly.
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Total for this question: 1 mark
6.19B Cloning mammals
Exam question
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Identify the role of the surrogate mother.
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Total for this question: 1 mark
6.19B Cloning mammals
Exam question
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Explain why cloning could help save endangered species.
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Total for this question: 2 marks
6.19B Cloning mammals
Exam question
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Suggest an ethical objection to cloning mammals.
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Total for this question: 2 marks
6.19B Cloning mammals
Exam question
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Compare cloning by nuclear transfer and embryo splitting.
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Total for this question: 2 marks
6.19B Cloning mammals
Exam question
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Illustrative figures modelled on the Dolly nuclear-transfer experiment.
| Stage | Number |
|---|---|
| eggs with new nucleus | 277 |
| embryos formed | 29 |
| lambs born | 1 |
Calculate the percentage of eggs that produced a lamb.
(2)Total for this question: 2 marks
6.19B Cloning mammals
Exam question
Mark points shown after marking
| Stage | Number |
|---|---|
| eggs with new nucleus | 277 |
| embryos formed | 29 |
| lambs born | 1 |
Use the data to explain why cloning is expensive.
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Total for this question: 2 marks
