Basic Principles of Transcription and Translation - Computer ...

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Nuclear envelope TRANSCRIPTION DNA RNA PROCESSING Pre-mRNA mRNA (b) Eukaryotic cell Nuclear envelope TRANSCRIPTION DNA RNA PROCESSING Pre-mRNA mRNA TRANSLATION Ribosome Polypeptide (b) Eukaryotic cell
The Genetic Code How are the instructions for assembling amino acids into proteins encoded into DNA There are 20 amino acids, but there are only four nucleotide bases in DNA How many bases correspond to an amino acid Codons: Triplets of Bases The flow of information from gene to protein is based on a triplet code: a series of nonoverlapping, three-nucleotide words These triplets are the smallest units of uniform length that can code for all the amino acids Example: AGT at a particular position on a DNA strand results in the placement of the amino acid serine at the corresponding position of the polypeptide to be produced
Page 1 and 2: The Flow of Genetic Information Th
Page 3: TRANSCRIPTION DNA mRNA (a) Bacteria
Page 7 and 8: Cracking the Code All 64 codons we
Page 9 and 10: Molecular Components of Transcripti
Page 11 and 12: RNA Polymerase Binding and Initiati
Page 13 and 14: Eukaryotic cells modify RNA after t
Page 15 and 16: 5′ Exon Intron Exon Intron Pre-mR
Page 17 and 18: The Functional and Evolutionary Imp
Page 19 and 20: Polypeptide Trp Phe Ribosome Amino
Page 21 and 22: Amino acid P P P ATP Adenosine Amin
Page 23 and 24: Building a Polypeptide The three s
Page 25 and 26: The elongation cycle of translation
Page 27 and 28: Growing polypeptides Completed poly
Page 29 and 30: Polypeptide synthesis always begins
Page 31 and 32: Type of RNA Small nucleolar RNA (sn
Page 33 and 34: RNA polymerase RNA polymerase Polyr
Page 35 and 36: Individual bacteria respond to envi
Page 37 and 38: Eukaryotic gene expression can be r
Page 39 and 40: CYTOPLASM mRNA in cytoplasm Degrada
Page 41 and 42: Histone tails DNA double helix Amin
Page 43 and 44: Epigenetic Inheritance Although th
Page 45 and 46: The Roles of Transcription Factors
Page 47 and 48: Mechanisms of Post-Transcriptional
Page 49 and 50: Initiation of Translation The init
Page 51 and 52: Noncoding RNAs play multiple roles
Page 53: Chromatin Remodeling and Silencing

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