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Unit Plan
CK-12 Foundation

Ck 12: Biology: Dna Structure and Replication

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Describes how DNA's structure and function was discovered.
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Article
Khan Academy

Khan Academy: Test Prep: Mcat: Biomolecules: Dna: Dna Structure and Function

For Students 9th - 10th
Provides detailed explanation of DNA's structure and function. Includes illustrations.