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DNA Structure and Protein Synthesis
Powerpoint Lecture

This Powerpoint begins with the history of the discovery of the shape and structure of DNA molecule, including contributions from Rosalind Franklin, Watson, and Crick. DNA is a double-helix, composed of a backbone chain of deoxyribose sugar, phosphate groups, and four nitrogenous bases. Students will also learn the process of DNA replication, the action of DNA polymerase, proofreading, and repair. The role of telomeres in preserving the ends of DNA molecules is also discussed.

Essential concepts:DNA replication, DNA synthesis, double helix, purines, pyrimidines, nitrogenous bases, adenine, thymine, guanine, cytosine, complementary strands, origins of replication, DNA polymerase, codons, triplets, transcription, mRNA, translation, tRNA, ribosomes, point mutations, missense, nonsense, frameshift mutations, insertions, deletions, mutagens.

Test questions: Available at the biology instructor resources subscription page.

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