SAS 013 Exam Questions With Complete Solutions 2024

SAS 013 Exam Questions With Complete Solutions 2024 Antonie van Leeuwenhoek - answer-Known as the Father or Microbiology (first microbiologist) -'animalcules' now known as microorganisms Johanna Westerdijk - answer- first female professor in the Netherlands (1917) - described Dutch elm disease Francis Collins - answer- Director of National Institutes of Health - responsible for discovering the genes mutated in cystic fibrosis Christiaan Eijkman - answerBeriberi Hypothesis: Beriberi is caused by a bacterium. Experiment: Infected half of the chicken population with the bacterium, left the other half. Result: All chickens got sick, then they all got better Conclusions: The chef had changed the diet from cooked polished rice, to uncooked unpolished rice New Hypothesis: Diet plays a role in beriberi Conclusions: 1) polished (white) rice is toxic, unpolished (brown) rice is not 2) The rice bran contains a substance that counteracts the toxic effect-Anti Beriberi Factor: Thiamin (vitamin B1) Rachel Carson - answerAdvancing the global environmental movement Tu Youyou - answera Chinese malariologist and pharmaceutical chemist. She discovered artemisinin and dihydroartemisinin, used to treat malaria 'Animalcules' - answera very small organism that is invisible or nearly invisible to the naked eye. now called microorganisms Factor V Leiden - answer- A variant of the protein Factor V which is needed for blood clotting (coagulation) - Named after the city of Leiden (The Netherlands), where it was first identified in 1994 -People with this have blood that has an increased tendency to clot -Most common cause of hereditary thrombophilia in the US Dutch Disease - answer-1960s discovery of large natural gas deposits in the North Sea -Exports caused increase in wealth from foreign currency inflow -Dutch guilder (currency) became stronger -Exports of all non-gas products less competitive on the world market -aka as the 'resource curse' or 'paradox of plenty' disease as a metaphor - answerSomething that is broken or in poor condition, such as an unhealthy marriage, a sick society, an ailin