BISC104 Lecture Notes - Lecture 1: Helicobacter, Scientific Control, Adenine
11 Oct 2018
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Ask a question, propose a possible answer (prediction), design an experiment, discard/modify things that fail. ?s for an experiment >sample size, control group, types tested, who completed the study. Consider alternative hypotheses (other factors that could in uence the result. Hypothesis: a proposed explanation for a single observation: testable, falsi able. Scienti c fact: proven true multiple times, repeatedly tested. Discovery science (descriptive science): based on observations and measurements. Experimentation: attempts to explain observations: based on scienti c method, making observations, asking questions, proposing ideas, testing ideas, discarding/modifying ideas. Hypothesis vs. theory > hypotheses more focused, theory is broad. Barry marshall-study of ulcers (possible causes: stress, spicy foods, etc. ) > nd bacteria in the stomachs of patients, come up with a hypothesis: bacteria causes ulcers. The process of science: observation, question, hypothesis, prediction, test, tests support or falsify hypothesis, does not prove it.
