Study guide for 2nd midterm SAS5

Study guide for 2nd midterm SAS5 - Lieve Study guide for...

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Lieve Study guide for 2 nd midterm SAS5: Science Society and Disease LECTURE 9 How has Huntington’s disease been linked to the Salem witchcraft trials of 1692? Most Huntington’s patients are descendants of two ancestors who emigrated from England to Salem, Masachusetts in 1630, in which people were being tried as bewitched upon receiving unknown epidemic conditions. In what way is the number of glutamine repeats in the huntingtin protein diagnostic or predictive of the time of onset of Huntington’s disease symptoms? If the glutamine repeats are closer Huntington’s disease is an autosomal dominant disorder. What is the chance that an unaffected mother and a heterozygous father have a child that is affected by this disease? There is a 50% chance that this child will be affected by the disease Why study the diseases of animals and plants? One should study the diseases of animals and plants because they are food sources, so they could easily infect humans. What are microbial saprobes? Saprobes are fungi that grow on non-living organic matter to get their nutrition, are not the causes of death; instead, they are sometimes beneficial, as they are recyclers in nature, breaking down organic matter such as carbohydrates or protein so they can be reused. What is the theory of spontaneous generation? The Theory of Spontaneous generation is the belief that life arises from non-living matter (things other than seeds, eggs, parents) What experiment did Spallanzani do to debunk the theory of spontaneous generation? Spallanzani performed an experiment to presumably show that air is needed for spontaneous generation to occur, as he sterilized broth in a flask, and showed that growth in the flask only occurred when there was air exposure. The issue with this is that there may just simply be Draw the special glassware that Louis Pasteur used in experiments that supported Spallanzani’s conclusion? What does the process of pasteurization do? The process of pasteurization refers to heating a food/liquid to a specific temperature for a definite length of time, and cooling it immediately. This usually slows microbial growth in food.
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In what two ways did late blight of potato affect the population of Ireland? The late blight of potato caused Irish people to die of starvation or disease (TB), and it also caused the Irish to emigrate to another country. M.J. Berkeley established a so‐called consistent association between diseased potato plants and the presence of a fungus‐like organism. What does this mean? MJ Berkeley discovered that in diseased potato plants, the same kind of fungus would be present, finding some sort of connection. (Phytopthora Infestans) What experiment did Anton deBary do with healthy and diseased potato plants and what did he observe? Anton deBary inoculated (vaccinated) pathogenic spores into the healthy and diseased plants and
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Study guide for 2nd midterm SAS5 - Lieve Study guide for...

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