Pearson Edexcel International GCSE Biology (4BI1) · EDEXCEL 4BI1
5 Use of biological resources
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on Use of biological resources
- Explain why a diploid nucleus is used, rather than a nucleus from a gamete, when cloning a… (4 marks, Explain)
- Describe the process of transgenics, explaining how recombinant DNA is produced and then i… (4 marks, Describe)
- GM crops have been developed that are resistant to insect pests. Explain how a gene from a… (4 marks, Explain)
- Explain how genetically modified bacteria are used to produce insulin for people with diab… (4 marks, Explain)
- Salmon farmers want to produce a strain of salmon that grows more quickly than wild salmon… (4 marks, Explain)
- Describe the role of restriction enzymes, plasmids, and ligase in the genetic modification… (4 marks, Describe)
- Selective breeding is used to improve characteristics in dogs. A breeder wants to produce … (4 marks, Explain)
- Explain why it can take many generations of selective breeding before a plant variety with… (4 marks, Explain)
- Describe how selective breeding could be used to produce a new variety of wheat plant that… (4 marks, Describe)
- Explain how GM crops can improve food production. (4 marks, Explain)
- Explain why the offspring produced by cloning a mammal using somatic cell nuclear transfer… (4 marks, Explain)
- A scientist wants to produce a genetically modified (GM) crop plant that contains a gene f… (4 marks, Describe)
- Describe the process of micropropagation used to produce large numbers of genetically iden… (4 marks, Describe)
- Describe how yeast is used in bread-making and explain why the bread rises during this pro… (4 marks, Describe)
- Tissue culture is used to produce large numbers of genetically identical plants from small… (4 marks, Explain)
- Describe how Lactobacillus is used to produce yoghurt from milk. (4 marks, Describe)
- Describe how biological control can be used to reduce pest numbers on a crop, and explain … (4 marks, Describe)
- Describe the process of selective breeding that a farmer could use to produce a herd of ca… (4 marks, Describe)
- Describe the roles of the enucleated egg cell and the diploid nucleus in the process of cl… (4 marks, Describe)
- Explain how selective breeding could be used to produce a new variety of wheat plant that … (4 marks, Explain)
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