BIOL 2051 Study Guide - Noncoding Dna, Messenger Rna, Nucleic Acid Sequence

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18 Jun 2014
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Sequence of nucleotides in dna that codes for a protein. Nucleotide sequence corresponds to sequence of amino acids: rna serves as an intermediate. The three key processes of macromolecular synthesis are: (1) dna replication making a copy of dna (2) transcription synthesis of rna from a dna template (3) translation synthesis of proteins using messenger rna as a template. Central dogma of molecular biology: basic processes are the same in prokaryotes & eukaryotes, but the organization of genetic information is more complex in eukaryotes, major differences: Introns -- dna sequences within genes that are not part of coding sequence for protein. In humans over 90% of the total dna is noncoding (enhancer sequences, promoters, remnants of viral genomes) Have little noncoding dna (less than 15%) Cluster of genes controlled by 1 regulatory sequence. Adenine pairs with thymine by 2 hydrogen bonds.

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