Mechanism of...
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| What is Transcription? | DNA --> RNA copy
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| What is the 1st step in Transcription? | DNA Gene Segment SEPARATES (H-bonds break)
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| What is the 2nd Step in Transcription? | ALIGNMENT of Free RIBOSE Nucleotides along Templates strand - base pairing
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| What is the 3rd Step in Transcription? | BONDS FORMED between Phosphate groups and Ribose Sugars = Polymerization
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| What is the 4th Step in Transcription? | Primary RNA Transcript SEPARATES from DNA
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| What is the 5th Step in Transcription? | RNA splicing - Introns: cut OUT; Exons: spliced TOGETHER
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| What is the 6th Step in Transcription? | processed mRNA DIFFUSES from Nucleus --> Cytoplasm
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| What happens chemically during step 3 of Transcritpion? | ATP used; RNA Polymerease II GLUES Nucleotides together
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| What are the 3 types of RNA and their Polymerase enzymes? | 1. mRNA: RNA Polymerase II; 2. tRNA: RNA Polymerase III; 3. rRNA: RNA Polymerase I
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| What is the benifit of DNA Dependent Polymerase Enzymes? | NO RANDOM assembly of Nucleotides, no WASTED ATP
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| What is Translation? | mRNA + mRNA + AA --Ribosomes--> Protein Product
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| What is the 1st step in Translation? | mRNA DIFFUSES from Nucleus --> Cytoplasm
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| What is the 2nd step in Translation? | ATTACHMENT to Ribosomes = (rRNA + Protein)
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| What is the 3rd step in Translation? | tRNAs PICK UP specific AA
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| What is the 4th step in Translation? | Exposed ANTI-Codon on tRNA forms H-bonds w/ complimentary Codon on mRNA
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| What is the 5th step in Translation? | Peptidyl Transferase catalyze the formation of Peptide Bonds between AA --> Polypeptide --> Protein Product
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| What is the 6th step in Translation? | tRNA FREED and REPEATS the process
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| Till what point are mRNA & rRNA no longer used? | used until degraded by wear
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| How many different Codons are there? | 64, same as DNA triplets
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| RNA substatutes what bases? | substitutes Thymine with Uracil
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Created by:
Kristel
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