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  • Biology Factsheet: 282. What can mitochondrial DNA (mtDNA) tell us?

    Biology Factsheet: 282. What can mitochondrial DNA (mtDNA) tell us?

    This Factsheet: • Describes mtDNA • Explains why it can be used to trace evolutionary relationships • Reviews recent exam question on mtDNA...

    Price £3.00more info
  • Biology Factsheet: 283. Why we need dietary fibre

    Biology Factsheet: 283. Why we need dietary fibre

    This Factsheet: • Explains the essential role of fibre in our diet • Identifies useful sources of fibre • Evaluates scientific evidence linking lack of fibre to several life-threaten...

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  • Biology Factsheet: 284.  Engelmann, absorption and action

    Biology Factsheet: 284. Engelmann, absorption and action

    This Factsheet: • Describes the classic photosynthesis experiment conducted by Thomas Engelmann • Explains the concepts of the absorption spectrum and action spectrum • Explains the ...

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  • Biology Factsheet: 285. Using our knowledge of the Human Genome Project

    Biology Factsheet: 285. Using our knowledge of the Human Genome Project

    This Factsheet: • Describes how scientists are using the results of the Human Genome Project (HGP) to predict the chances of people contracting particular diseases and how long they are likely t...

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  • Biology Factsheet: 286. Thermoregulation in humans

    Biology Factsheet: 286. Thermoregulation in humans

    Homeostasis is the maintenance of a constant internal environment e.g. body temperature and blood pH. This is essential because our enzymes work most efficiently (optimally) at a particular temperatu...

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  • Biology Factsheet: 287. Re-emergence of whooping cough

    Biology Factsheet: 287. Re-emergence of whooping cough

    Diseases in the UK that we thought we had “conquered” - whooping cough, measles and rickets and, for example, are coming back. Why? This Factsheet: • Describes the cause, nature and...

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  • Biology Factsheet: 288. Hen harriers v Red grouse: a moorland management conflict

    Biology Factsheet: 288. Hen harriers v Red grouse: a moorland management conflict

    Heather moorlands cover large areas of the UKs uplands but, globally, they are rare. In terms of conservation, they are important bird habitats. This Factsheet focuses on the conflict between landown...

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  • Biology Factsheet: 289. New research in Alzheimer’s disease

    Biology Factsheet: 289. New research in Alzheimer's disease

    This Factsheet : • Explains the basic functions of key regions of the brain • Explains how Alzheimer’s affects these regions • Describes students’ common confusion betwee...

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  • Biology Factsheet: 290. Answering Exam Questions: Blood groups and transfusions

    Biology Factsheet: 290. Answering Exam Questions: Blood groups and transfusions

    This Factsheet: • Summarises the basis of blood transfusions • Summarises the ABO and rhesus blood groups • Explains how and why scientists are trying to convert blood groups &bul...

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  • Biology Factsheet: 291. Answering questions on DNA replication

    Biology Factsheet: 291. Answering questions on DNA replication

    Apart from the fact that the Biology in this Factsheet is fundamental to life itself there are three great reasons why you should make sure you don’t go into the exams without knowing and unde...

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