web_L33_08BIO311C - BIO 311C April 11, 2008 Exam 3 will be...

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BIO 311C April 11, 2008 Exam 3 will be held in this room during the class period next Friday (April 18) Exam 3 will be very similar in length, style and format to Exams 1 and 2. Corresponding Exams from previous semesters have been placed on the BIO 311C-Brand web site.
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* Definition: Bioinformation molecule - a biopolymer whose sequence of monomers conveys useful information in the cell. The three kinds of information molecules in cells are DNA, RNA and polypeptides. Primary Structure of a portion of a strand of DNA Primary structure of a portion of a molecule of RNA Primary structure of a portion of a polypeptide chain The information content of bioinformation molecules resides in their primary structure.
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Major roles of Bioinformation Molecules in Cells DNA RNA Protein (polypeptide chains) long-term storage of information short-term storage of information, regulation of expression of information, management and conveyance of information expression of information *
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Primary Structure of DNA Primary Structure of RNA Primary Structure of a polypeptide chain Information Flow in Cells transcription translation replication * This sequence of events is often called the "central dogma" of molecular biology. reverse transcription
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Review: DNA is an essential component of all living cells. DNA resides in the cytoplasmic matrix of prokaryotic cells. Most DNA resides in nucleus of eukaryotic cells, with a small amount also in mitochondria and plastids. DNA does not move from one compartment to another in cells under normal circumstances. DNA *
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Review DNA occurs in cells as a very long double helix of two polynucleotide chains. The double helix of DNA in eukaryotes is organized in cells by binding to, and wrapping around, specific proteins. This binding and wrapping in eukaryotic cells is very elaborate and
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web_L33_08BIO311C - BIO 311C April 11, 2008 Exam 3 will be...

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