How do we know the structure of DNA? Learn about Chargaff's rule and how scientists first discovered the structure of DNA. Using an informative video, young scientists identify how the arrangement of complementary nitrogen bases affects the sequence of different organisms' DNA.

Concepts

dna, adenine, thymine, cytosine, guanine, the double helix, dna molecule, dna sequence, molecular biology

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Additional Tags

science

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Instructional Ideas

• Use as an introduction to DNA structure
• Give scholars a visual of how DNA is arranged in a sequence of complementary nitrogen bases

Classroom Considerations

• Expects that learners have general knowledge of the four nitrogenous bases of DNA

Pros

• Gives a quick explanation of Chargaff's rule
• Provides a visual of the effect of Chargaff's rule on DNA sequences

Cons

• None

Common Core

SL.9-10.2