Scientific Method with DNA
Можете да намерите този сценарий в следните статии и ресурси:
Научни Стъпки на Метода
От Оливър Смит
Научният метод е постоянен процес: едно откритие може да доведе до много повече въпроси, които, когато бъдат изследвани, могат да доведат до повече отговори. В допълнение към обобщение на ключовите стъпки на научния метод има предложени дейности, които да накарат вашите ученици да се ангажират да мислят за науката в реалния свят.
'
Вижте някои от другите ни образователни статии!
Описание на Статията
scientific method comic: See the steps of the scientific method for the discovery of DNA's helical shape
Текст на Статията
- Part of the Scientific Method
-
- ?
- 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.
-
- Hypothesis
-
- Crick and Watson hypothesized that DNA had a helical (spiral) shape.
-
- I think __________ will happen.
-
- Prediction
- ?
-
-
- ?
-
-
- ?
-
-
-
- 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.
-
- Experiment
-
- Rosalind Franklin was carrying out research at Kings College, London. She looked at the structure of DNA using X-ray diffraction.
-
-
-
- Analysis
-
- 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/)
Присвояване на Изображения
- X-ray ensemble - genomebiology - (Разрешително Attribution )
Над 30 милиона създадени разкадровки