Central Dogma

After wrapping up the discussion from the previous day’s lesson about The Double Helix, we launched into an investigation of the process of Central Dogma.  Students learned how DNA codes for RNA which codes for protein, with everyone drawing out the notes shown below.  We drew out the processes of transcription and translation, using a guided worksheet approach to help students understand what happens at each step of the process.  We worked through worksheet question 15 (identifying codons) and will continue our exploration of Central Dogma and complete the worksheet packet tomorrow.

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Update: 12/13/17

We completed drawing our model of Central Dogma and then students had the remainder of the class period to work through the worksheet from yesterday.  Drawings were collected (students will receive credit for their work) and the worksheet is due by Friday for credit.  Below is an updated picture of our model:

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Space-Filling Models

Lesson 39 introduces students to the concept of space-filling models.  The lesson calls for students to use space-filling models which we do not have access to at our school.  Rather than continue to use the ball-and-stick models, students instead worked in pairs and used MolView, a free software program available online.  Using MolView, students searched for the compounds in the Lesson 39 Worksheet using the search tool.  They then visualized the molecules as space-filling models using the van der Waals Spheres option located under the Model tab.  Although not particularly helpful, the Lesson 39 PowerPoint is included.  For homework, students are assigned questions 3-7 from page 203 of the textbook.