BIOL 1001 Lecture : Week 3
Document Summary
8/22/2012 5:30:00 pm: science is a collection of facts and a problem solving process, collection of facts, acquisition of knowledge with the goal of explaining natural phenomena, problem solving process, (scientific method) to decide what is not factual. What is biology: bio means life, ology means study of , biology is the study of life. The main test of your observation: control. Used to keep untested variables constant: limits of the method. Never be sure until all untested variables are controlled. Conclusions based on the experiment data must remain tentative. Alexander fleming lucky accident : studying bacteria, bacterial cultures became contaminated with a mold, the mold was penicillium inhibited in the bacterial growth, the mold produced a antibacterial substance, 1st antibiotic. Prions: before 1980"s all known infectious disease contained dna and rna, stanley prusiner discovered scrapie is caused by a protein, proteins do not contain dna and rna, prions have since been shown to cause mad cow .
