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PROTEIN SYNTHESIS

PROTEIN SYNTHESIS. Pathway to Making a Protein. DNA mRNA Protein. What is RNA?. Roles of RNA and DNA. DNA is the MASTER PLAN RNA is the BLUEPRINT of the Master Plan. RNA Differs from DNA. RNA: DNA:. Structure of RNA. Three Types of RNA. Messenger RNA (mRNA)

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PROTEIN SYNTHESIS

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  1. PROTEIN SYNTHESIS

  2. Pathway to Making a Protein DNA mRNA Protein

  3. What is RNA?

  4. Roles of RNA and DNA • DNA is the MASTER PLAN • RNA is the BLUEPRINT of the Master Plan

  5. RNA Differs from DNA RNA: DNA:

  6. Structure of RNA

  7. . Three Types of RNA • Messenger RNA (mRNA) • Ribosomal RNA (rRNA) • Transfer RNA (tRNA)

  8. Remember the Complementary Bases On DNA: A- C- On RNA: A-U C-

  9. Transcription and Translation

  10. Nuclear membrane DNA Transcription Pre-mRNA RNA Processing mRNA Ribosome Translation Protein DNA RNAProtein Eukaryotic Cell

  11. Question: • What would be the complementary RNA strand for the following DNA sequence? DNA 5’-GCGTATG-3’

  12. Answer: • DNA 5’-GCGTATG-3’ • RNA 3’-CGCAUAC-5’

  13. The Genetic Code • A codon designates an amino acid • A codon is three bases • There are 20 amino acids, but 64 possible codons

  14. The Genetic Code • read from the center to the outside • Example: AUG codes for Methionine

  15. Name the Amino Acids • GGG? • UCA? • CAU? • GCA? • AAA?

  16. Transcription Translation

  17. start codon A U G G G C U C C A U C G G C G C A U A A mRNA codon 1 codon 2 codon 3 codon 4 codon 5 codon 6 codon 7 stop codon protein methionine glycine serine isoleucine glycine alanine Primary structure of a protein aa2 aa3 aa4 aa5 aa6 aa1 peptide bonds Overview

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