Scientific Method with DNA
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Kroki Metod Naukowych
Autor: Oliver Smith
Metoda naukowa jest procesem ciągłym: jedno odkrycie może prowadzić do wielu pytań, które po zbadaniu mogą prowadzić do większej liczby odpowiedzi. Oprócz podsumowania kluczowych etapów metody naukowej sugerowane są ćwiczenia, które mają zachęcić uczniów do myślenia o nauce w realnym świecie.
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Storyboard Opis
scientific method comic: See the steps of the scientific method for the discovery of DNA's helical shape
Tekst Storyboardowy
- Part of the Scientific Method
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- Example
- DNA has four bases.
- Question
- Avery, MacLeod and McCarty discovered that DNA was likely to carry the genetic information. They did not, however, know the shape of the DNA molecule.
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- Hypothesis
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- Crick and Watson hypothesized that DNA had a helical (spiral) shape.
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- I think __________ will happen.
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- Prediction
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- If the form of DNA were helical, then its X-ray diffraction pattern would be X-shaped.
- I carried out an experiment using X-rays to look at the structure of DNA. Using this image I made, we can work out what the structure is.
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- Experiment
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- Rosalind Franklin was carrying out research at Kings College, London. She looked at the structure of DNA using X-ray diffraction.
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- Analysis
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- The images were shared with Watson and Crick who analyzed the images and discovered that the pattern matched their hypothesis and prediction.
- Image Attributions:X-ray ensemble (https://www.flickr.com/photos/99249556@N03/9344158296/) - genomebiology - License: Attribution (http://creativecommons.org/licenses/by/2.0/)
Atrybuty Obrazu
- X-ray ensemble - genomebiology - (Licencja Attribution )
Utworzono ponad 30 milionów scenorysów