Chapter 8. Section 8.2: The Structure of DNA. Objectives. SWBAT describe the interaction o the four nucleotides that make up DNA. SWBAT describe the three-dimensional structure of DNA. Vocabulary – Section 8.2. Nucleotide Double helix What are the four nitrogen-containing bases of DNA?
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Section 8.2: The Structure of DNA
deoxyribose (sugar)The Structure of DNA
This is Franklin’s x-ray photograph with which Watson and Crick worked. They created wood and metal models to figure out the DNA’s structure.
Note the role of hydrogen and covalent bonds to hold the molecule together.