DNARNA-Part5 - Ribosomal RNA is part of the protein...

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Ribosomal RNA is part of the protein synthesis apparatus Ribosomal RNA accounts for most (up to 80%) of cellular RNA and is metabolically stable
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Enzymes whose RNA subunits carry out catalytic reactions are called ribozymes . Discovery of RNA catalysis has greatly altered our concepts of biochemical evolution and the range of allowable cellular chemistry. First, we now recognize that RNA can serve as both a catalyst and a carrier of genetic information. This has raised the possibility that the earliest living organisms were based entirely on RNA and that DNA and proteins evolved later. This model is sometimes referred to as the “ RNA world ”.
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Small stable RNAs have been implicated in: - RNA processing and transport - control of translation - protein recognition
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Polymerase Chain Reaction (PCR)
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DNA, composed of four different nucleotides is deceptively complex. Complexity is conferred on the DNA molecule by: -the nonrandom sequence of its bases -multiple conformations that exist in equilibrium in the
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This note was uploaded on 04/09/2011 for the course CHEM 4461 taught by Professor Max during the Spring '08 term at Lamar University.

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DNARNA-Part5 - Ribosomal RNA is part of the protein...

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