Why are individuals with immune system defects more prone to infectious diseases?
Why are individuals with immune system defects more prone to infectious diseases?
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Questions and Answers For
AQA GCSE Biology
237 Questions
In what ways can diet, stress, and life situations impact health?
In what ways can diet, stress, and life situations impact health?
1 Answer
What factors can significantly affect both physical and mental health?
What factors can significantly affect both physical and mental health?
1 Answer
How do communicable and non-communicable diseases contribute to ill health?
How do communicable and non-communicable diseases contribute to ill health?
1 Answer
What are the different types of diseases, and how can they interact with one another?
What are the different types of diseases, and how can they interact with one another?
1 Answer
How would you describe the relationship between health and disease?
How would you describe the relationship between health and disease?
1 Answer
What is Coronary heart disease?
What is Coronary heart disease?
1 Answer
What are the principles of organization in living organisms, and how are cells, tissues, organs, and organ systems structured and functionally connected?
What are the principles of organization in living organisms, and how are cells, tissues, organs, and organ systems structured and functionally connected?
1 Answer
How do phloem cells’ structures enable them to transport nutrients within plant tissues?
How do phloem cells’ structures enable them to transport nutrients within plant tissues?
1 Answer
In what ways are xylem cells specialized for transporting water throughout a plant?
In what ways are xylem cells specialized for transporting water throughout a plant?
1 Answer
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Top Questions
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Discuss the advantages and disadvantages of genetically modifying crops, including soya, maize and rice
Genetically modified (GM) crops, such as soybeans, 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
<h2 class="mb-2 mt-6 text-lg first:mt-3">Process of Genetic Modification Using Bacterial
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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
<h2 class="mb-2 mt-6 text-lg first:mt-3">Examples of Genetic Modification</h2> Genetic modification involves
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Describe genetic modification as changing the genetic material of an organism by removing, changing or inserting individual genes
Genetic modification (GM) refers to the deliberate alteration of an
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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
<h2 class="mb-2 mt-6 text-lg first:mt-3">Conditions to Control in a Fermenter</h2> Fermenters
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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
<h2 class="mb-2 mt-6 text-lg first:mt-3">The Use of Fermenters for Large-Scale
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Explain the use of lactase to produce lactosefree milk
<h2 class="mb-2 mt-6 text-lg first:mt-3">The Use of Lactase to Produce
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