2005_campbl17 - Important Point Flow of Information DNA DNA...

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1 Chapter 17: From Gene to Protein Important Point: Flow of Information DNA Æ DNA = Replication DNA Æ RNA = Transcription RNA Æ Protein = Translation RNA Æ DNA = Reverse Transcription Protein Æ RNA or DNA: DOES NOT HAPPEN! Nucleic acid sequence is most readily translated into protein sequence But protein sequence cannot be translated into nucleic acid sequence In other words, information flows from Nucleic Acid Sequence to Protein Sequence Information flows from Genotype to Phenotype Mutation and Natural Selection supplies the means by which protein sequence can influence nucleic- acid sequence Flow of Information “The DNA inherited by an organism leads to specific traits by dictating the synthesis of certain proteins. Proteins are the links between genotype and phenotype.” Information Flow Information Flow
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