Khan Academy is probably a good resource: https://www.khanacademy.org/science/high-school-biology/hs-molecular-genetics#hs-discovery-and-structure-of-dna https

Khan Academy is probably a good resource: https://www.khanacademy.org/science/high-school-biology/hs-molecular-genetics#hs-discovery-and-structure-of-dna https://www.khanacademy.org/science/high-school-biology/hs-m... Also here, the three sections starting with “DNA as the genetic material”: https://www.khanacademy.org/science/biology https://www.khanacademy.org/science/biology An introductory biology textbook would be good too. Any AP biology textbook should cover it all.