BIOL 204 Lecture 3 Outline - Genes & Gene Expression.doc

BIOL 204 Lecture 3 Outline - Genes & Gene...

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BIOL 204 Lecture Outline 3 – Genes & Gene Expression Learning Objectives: Identify and use “Chargaff’s Rules” Distinguish between genotype and phenotype What is Francis Crick’s Central Dogma ? Discuss and distinguish between transcription and translation What is the evidence for the evolution of the genetic code ? Identify the contributions of the following people to organismal biology: Rosalind Franklin , Francis Crick & James Watson I. Deoxyribonucleic Acid ( DNA ) a. Chromosomes consist of chromatin – combination of DNA and proteins b. A virus is a cluster of DNA (or RNA) surrounded by a protein coating i. Bacteriophages (or phages for short) can reprogram bacterial cells into virus factories c. Hershey-Chase “Blender Experiment – concluded that DNA enters cells, not protein; thus, DNA functions as the genetic material d. Three main part to DNA: i. Nitrogenous base (A,C,G,T/U) ii. Deoxyribose (sugar) iii. Phosphate e. Chargraff’s Rules i.
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