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The Biology website is at midpac/~biology/

The Biology website is at http://midpac.edu/~biology/ Also make sure you are using a recent version of your web browser. In some cases if it does not work copy the file first to your desktop before running. Prologue: Biology and the Molecular Prospective.

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The Biology website is at midpac/~biology/

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  1. The Biology website is at http://midpac.edu/~biology/ Also make sure you are using a recent version of your web browser. In some cases if it does not work copy the file first to your desktop before running

  2. Prologue: Biology and the Molecular Prospective “Science can be very helpful in telling us what we can do ... Science, however, cannot tell us what we should do.”4 1

  3. We didn’t know what DNA looked like. Animal Cloning was still science fiction. When you’re grandparents were in biology… 2 3 Now these things are current fact!

  4. Science assumes that the natural world can be investigated and explained in terms we can understand. Science is based on the results of observations and controlled experiments Results must be repeatable and verifiable The findings of science must be refutable. Science is Objectivity Repeatability Clarity Logic Science as a way of knowing… 5

  5. The Scientific Method Hypothesis Rejected Hypothesis Accepted • Observation – Seeing something interesting. • Hypothesis – If, Then format. Propose a testable explanation for the observation. • Testing – Observations in nature or in controlled laboratory experiments to confirm or refute a hypothesis

  6. Scientific Method • Problem • Preliminary Observations • Hypothesis • Experimental procedure • Results/Data • Conclusion

  7. Testable Hypothesis • No one can really test out how dinosaurs really died • How do some scientists believe dinosaurs died out? • What proof do they have?

  8. The Scientific Method at Work “Beans, beans, The musical fruit The more you eat, The more you toot.”12 8 9

  9. Substrate = Oligosaccharide (sugar) What do we already know about beans and gas? 7 flatus,n. The decorous word for a fart derives from the Latin word for "wind." "Flatulent" refers to being "liable to, or prolific in, windy blasts," according to the Oxford English Dictionary. 6 10

  10. A Hypothesis is a Testable Logical Argument If beans cause gas and I eat a lot of beans… then I will eliminate large quantities of gas. If = what I want to prove true And = the kind of experiment I’m going to do Then = what I will see (data) if the If part is true “dependent variable” 11

  11. The Ultimate Controlled Experiment • Only change one variable • Control Groups • Positive Control: where you “know” something will happen • Negative Control: where you expect nothing to happen • Experimental Group • Make sure your experiment is repeatable

  12. Quantitative Data 9

  13. Qualitative Data • A little sour • Deathly acrid • Very stinky • Embarrassing “The more you toot, The better you feel, So eat beans At every meal”12 9

  14. Interpret and Conclude • What do the data mean? • Why did we observe this data? • Suggest possible conclusion(s)/explanation(s) • Ask a new question • Form Theory: explains current observations and predicts future observations – more general than a hypothesis

  15. Literature Cited • www.rkm.com.au/imagelibrary/ • http://www.biology.arizona.edu/human_bio/activities/blackett2/overview.html • http://www.howstuffworks.com/cloning.htm?printable=1 • BSCS Biology: A Molecular Approach. Blue Version. 8th Edition. Jon Greenberg, Revision Edictor. Everyday Learning. Chicago, IL. 2001. • www.unipissing.ca/faculty/ daveh/story.htm • http://www.discovery.com/area/skinnyon/skinnyon970815/skinnyon.html • http://www2.wgbh.org/mbcweis/ltc/leadpois/beans.jpg • http://hlunix.hl.state.ut.us/cfhs/chronic/CVD/dash_diet.htm • Dena Ono’s Powerpoint File • www.accessexcellence.org/ AB/GG/enzyme.html • www.dragonsagadensetsu.com/ SD1art.html • http://www.heptune.com/fartpoem.html

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