What role does Luteinising Hormone (LH) play in the release of an egg?
What role does Luteinising Hormone (LH) play in the release of an egg?
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AQA GCSE Biology
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How does Follicle Stimulating Hormone (FSH) function in the menstrual cycle?
How does Follicle Stimulating Hormone (FSH) function in the menstrual cycle?
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Which hormones are involved in the menstrual cycle, and what are their specific roles?
Which hormones are involved in the menstrual cycle, and what are their specific roles?
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What is the main male reproductive hormone, where is it produced, and what is its role?
What is the main male reproductive hormone, where is it produced, and what is its role?
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What is ovulation, and how often does it occur in the female reproductive system?
What is ovulation, and how often does it occur in the female reproductive system?
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What is the main female reproductive hormone, where is it produced, and what function does it serve at puberty?
What is the main female reproductive hormone, where is it produced, and what function does it serve at puberty?
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How do reproductive hormones affect the development of secondary sex characteristics during puberty?
How do reproductive hormones affect the development of secondary sex characteristics during puberty?
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What roles do hormones play in human reproduction and the menstrual cycle?
What roles do hormones play in human reproduction and the menstrual cycle?
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What roles do hormones play in human reproduction and the menstrual cycle?
What roles do hormones play in human reproduction and the menstrual cycle?
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What is oxygen debt, and how does the body use extra oxygen after exercise to remove lactic acid?
What is oxygen debt, and how does the body use extra oxygen after exercise to remove lactic acid?
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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
