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Science Starter #5 – 11/28/16 What two enzymes are associated with DNA replication and what are their roles? TURN IN OODLES OF DNA LAB BEFORE THE BELL RINGS Notes 5.3 - RNA and Central Dogma Chapter 10 pp. 204-210 RNA Structure RNA (Ribonucleic Acid): an intermediate between DNA and proteins Monomer: Nucleotide Polymer: Nucleic Acid Sugar: ribose Backbone: sugar+phosphate Uses uracil instead of thymine What will “U” bind with in RNA? Single stranded RNA Nitrogenous Bases PURINE PYRIMIDINE Adenine Uracil Guanine Cytosine CUT CUT CUT CUT Types of RNA Messenger RNA (mRNA): single strand of RNA that carries information from DNA to ribosome Ribosomal RNA (rRNA): RNA that is part of a ribosome Transfer RNA (tRNA): transfers amino acids to the ribosome to make a protein Central Dogma Central dogma of molecular biology describes the flow of genetic information within an organism In other words: DNA makes RNA makes PROTEIN Protein Synthesis: forming proteins based on information in DNA and carried out by RNA Transcription: DNA acts as the template for RNA synthesis Make RNA using DNA Translation: RNA directs the assembly of a protein Make protein using RNA