How do testing kits with monoclonal antibodies work to identify plant diseases?
How do testing kits with monoclonal antibodies work to identify plant diseases?
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AQA GCSE Biology
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What role do laboratories play in diagnosing plant diseases?
What role do laboratories play in diagnosing plant diseases?
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How can gardening manuals or websites assist in identifying plant pathogens?
How can gardening manuals or websites assist in identifying plant pathogens?
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What methods can be used to identify specific plant diseases?
What methods can be used to identify specific plant diseases?
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How does discolouration and the presence of pests help in detecting plant disease?
How does discolouration and the presence of pests help in detecting plant disease?
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What types of growth abnormalities might indicate the presence of a disease in plants?
What types of growth abnormalities might indicate the presence of a disease in plants?
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How can stunted growth, spots on leaves, and decay signal plant disease?
How can stunted growth, spots on leaves, and decay signal plant disease?
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What are some common signs that indicate a plant may be diseased?
What are some common signs that indicate a plant may be diseased?
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Advantages and disadvantages of sexual and asexual reproduction
Advantages and disadvantages of sexual and asexual reproduction
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(For higher-tier students) How do the mechanisms of vasodilation, vasoconstriction, sweating, and shivering work to raise or lower body temperature in various situations?
(For higher-tier students) How do the mechanisms of vasodilation, vasoconstriction, sweating, and shivering work to raise or lower body temperature in various situations?
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Top Questions
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Discuss the advantages and disadvantages of genetically modifying crops, including soya, maize and rice
Sourav
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Outline the process of genetic modification using bacterial production of a human protein as an example, limited to: (a) isolation of the DNA making up a human gene using restriction enzymes, forming sticky ends (b) cutting of bacterial plasmid DNA with the same restriction enzymes, forming complementary sticky ends (c) insertion of human DNA into bacterial plasmid DNA using DNA ligase to form a recombinant plasmid (d) insertion of recombinant plasmids into bacteria (specific details are not required) (e) multiplication of bacteria containing recombinant plasmids (f) expression in bacteria of the human gene to make the human protein
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Outline examples of genetic modification: (a) the insertion of human genes into bacteria to produce human proteins (b) the insertion of genes into crop plants to confer resistance to herbicides (c) the insertion of genes into crop plants to confer resistance to insect pests (d) the insertion of genes into crop plants to improve nutritional qualities
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Describe genetic modification as changing the genetic material of an organism by removing, changing or inserting individual genes
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Describe and explain the conditions that need to be controlled in a fermenter, including: temperature, pH, oxygen, nutrient supply and waste products
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Describe how fermenters can be used for the large-scale production of useful products by bacteria and fungi, including insulin, penicillin and mycoprotein
