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Download January 7, 2014 Notes Transcription: process of copying DNA into
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Transcript
January 7, 2014 Notes Transcription: process of copying DNA into an RNA template. (Occurs in nucleus) 1. 2. 3. 4. 5. DNA Helicase unzips the DNA RNA polymerase assembles nucleotides according to base pairing rule. A-U, C-G. RNA polymerase proof reads chain. RNA ligase ties nucleotides together. mRNA leaves the nucleus. Translation: 1. mRNA travels to Ribosomes. 2. rRNA attaches to mRNA and serves as a book mark. 3. tRNA carrying an amino acid travels down the mRNA until its anticodon matches a codon on mRNA. (Base Pairing Rule) EX: mRNA A U G G GC A U U C C C A A G C G C U G A Codon: (every three) m- Messenger r- Ribosome t- Transfer
