The Discovery of Nucleic Acids: Key Experiments, DNA Structure & A/B/Z Forms Explained
Автор: Life Science
Загружено: 2025-12-04
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Explore the fascinating history and structure of nucleic acids in this detailed and easy-to-understand video. Beginning with Friedrich Miescher’s first isolation of “nuclein” in 1868, this video walks through the groundbreaking experiments that shaped modern genetics—including Griffith’s transformation experiment and the Hershey–Chase bacteriophage study, which confirmed DNA as the genetic material.
We break down the chemical composition of DNA, covering purine and pyrimidine bases, nucleotide formation, and the significance of Chargaff’s rules. You’ll also learn how X-ray diffraction data contributed to Watson and Crick’s iconic right-handed double-helix model.
Finally, the video compares the major structural forms of DNA: A-DNA, B-DNA, and Z-DNA, highlighting their unique properties, conformations, and biological relevance.
#DNA #NucleicAcids #Genetics #Biochemistry #Miescher #WatsonAndCrick #Chargaff #HersheyChase #GriffithExperiment #MolecularBiology #DNAStructure #ADNA #BDNA #ZDNA #ScienceEducation
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