Structures of the DNA Molecule and of Chromosomes

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HONORS BIOLOGY / BIOLOGY
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DNA is a large molecule and ranges in size from just a few nucleotides (usually paired with a complimentary strand in a double helical form) in length to a chain (polymer) of tens of millions of nucleotides. Notice in the image below that the two complimentary strands run in opposite directions, an orientation called anti-parallel. Click on the image below to see a larger version.

The multi-level structure of a chromosome is shown in the image below--click on it to see a larger version. Remember, DNA in most eukaryotic cells only adopts this super compact chromosome form when the cell is going through mitosis--the rest of the time (interphase), the DNA is less tightly wound and packed.

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Daily Summary 01-10

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HONORS BIOLOGY
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AGENDA:

- Objectives: Use credible scholarly scientific literature to determine and report on the structure of DNA and the mechanisms / biomolecular machinery used in cells to build, repair, and copy this molecule

- Warm-up: Where is DNA usually found in most eukaryotic cells? What is the major function of DNA in all cells?

- ESLP Spring Projects [5]

- Overview of DNA structure and replication [20]

- Start DNA origami

- Use the 3-D Animation Library at the DNA Learning Center to better understand DNA structure and replication and to find accurate answers for the DNA wrapping/replication questions


OUTSIDE OF CLASS:

- Finish DNA wrapping/replication questions

- Finish DNA origami


NOTE on Spring ESLP Projects:

• Students may complete multiple projects—minimum requirement this time is two projects
• First project must be completely submitted by Friday, March 17th
• Second project must be completely submitted by Friday, June 2nd
• In addition to your finished product/task, you must also create a Blogger blog to show your (1) project outline/plan, (2) timeline, (3) budget statement, and (4) progress journal (series of blog posts) with photos. BioSITE participants will be invited to existing blog—see me to get an invitation to blog

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AP ENVIRONMENTAL SCIENCE
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AGENDA:

- Objectives: Be able to (1) describe the general characteristics of forests / woodlands, (2) explain how forests are used by humanity and the impacts our actions in/on forests have on all parts of the biosphere, and (3) discuss how humans can rethink our relationship with forests to ensure indefinite existence for both

- Warm-up: What is a forest? Give an example. Do forests have value? Explain. [10]

- Unit 7: Land Use: Overview [5]

- Unit 7: Lecture 1: Forests [25]

- Unit 7: Lecture 2: Forest Management [25]

- Class discussion: SFI and FSC: Greenwashing for timber and paper industry or legitimate consumer labeling programs?


OUTSIDE OF CLASS:

- Read pp. 218-233 in Miller

- Read Healthy Forests Initiative summary (fact sheet)



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BIOLOGY
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AGENDA:

- Objectives: Use credible scholarly scientific literature to determine and report on the structure of DNA and the mechanisms / biomolecular machinery used in cells to build, repair, and copy this molecule

- Warm-up: Where is DNA usually found in most eukaryotic cells? What is the major function of DNA in all cells?

- ESLP Spring Projects [5]

- Overview of DNA structure and replication [20]

- Start DNA origami

- Use the 3-D Animation Library at the DNA Learning Center to better understand DNA structure and replication and to find accurate answers for the DNA wrapping/replication questions


OUTSIDE OF CLASS:

- Finish DNA wrapping/replication questions

- Finish DNA origami


NOTE on Spring ESLP Projects:

• Students may complete multiple projects—minimum requirement this time is two projects
• First project must be completely submitted by Friday, March 17th
• Second project must be completely submitted by Friday, June 2nd
• In addition to your finished product/task, you must also create a Blogger blog to show your (1) project outline/plan, (2) timeline, (3) budget statement, and (4) progress journal (series of blog posts) with photos. BioSITE participants will be invited to existing blog—see me to get an invitation to blog

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NOTES ON DNA STRUCTURE

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BIOLOGY / HONORS BIOLOGY
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Here are the notes on the structure and properties of DNA used in class to introduce students to the basic structure of the biomolecule known as DNA.



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Biology 1-2: DNA Wrapping and Replication Resources and Questions

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BIOLOGY
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Use the 3-D Animation Library at the DNA Learning Center to better understand DNA structure and replication and to find accurate answers for the DNA wrapping/replication questions:

• Information on DNA Wrapping and Replication (DNA Learning Center)
• DNA Wrapping and Replication Questions

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Daily Summary 12-16

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HONORS BIOLOGY
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NO CLASS TODAY (SEE YESTERDAY'S POST)



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AP ENVIRONMENTAL SCIENCE
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NO CLASS TODAY (SEE YESTERDAY'S POST)



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BIOLOGY
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AGENDA:

- Objectives: Demonstrate a basic understanding of photosynthesis by running a controlled scientific experiment to study the effects of varying CO2 concentration and light intensity on rates of photosynthesis

- Finish Photosynthesis Lab [30 - 40]

- Cellular respiration questions (online) [30]

- Begin reviewing for final exam / Wrap up ESLP projects

- Did you also remember to answer the online photosynthesis / chloroplast virtual tour questions and place in shared bio folder?


OUTSIDE OF CLASS:

- Finish photosynthesis lab write-up and place in your Google Drive shared Biology folder

- Finish ESLP project (make sure you have created a blog with all of the required information OR, if you were on the BioSITE team or the garden clean-up team, have posted the required summaries appropriate to the team of which you were a part)



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