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HONORS BIOLOGY / BIOLOGY
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DNA Unit Review Website:
http://desertbruchid.net/4_GB1_LearnRes_fa10_f/4_GB1_LearnRes_Web_Ch12.html
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Showing posts with label DNA. Show all posts
Showing posts with label DNA. Show all posts
Sunday, January 22, 2017
Wednesday, January 11, 2017
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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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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Monday, January 9, 2017
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 / 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:
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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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