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Pōʻalima 10.12.12

Pōʻalima 10.12.12. DNA to Protein. Nä ÿana. Determine what is wrong with the picture. . Transcription and Translation. 10.6-10.15. Big Picture. DNA → RNA → Protein. How does a gene become a protein?. Two parts: Transcription Converting DNA into RNA Translation

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Pōʻalima 10.12.12

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  1. Pōʻalima 10.12.12 • DNA to Protein

  2. Näÿana Determine what is wrong with the picture.

  3. Transcription and Translation 10.6-10.15

  4. Big Picture DNA → RNA → Protein

  5. How does a gene become a protein? Two parts: Transcription Converting DNA into RNA Translation Converting RNA into amino acids/proteins

  6. DNA RNA

  7. http://www.youtube.com/watch?v=ztPkv7wc3yU

  8. Transcription • Convert DNA to mRNA • Uses RNA Polymerase (moves 5’  3’ direction) • Promoter: starts transcription. • Terminator: Ends transcription

  9. RNA Splicing • Process of cutting out segments not needed. • Introns: not expressed • Exons: expressed

  10. Transcription If DNA sequence is AGCGTGCCA DNA sequence mRNA sequence UCGCACGGU

  11. Translation mRNA leaves nucleus Binds with ribosome Makes a chain of amino acids

  12. Translation tRNA “reads” mRNA sequence 3 letters at a time Codon = 3 mRNA nucleotides that codes for a specific amino acid

  13. Genetic Code Third letter

  14. Translation mRNA sequence: UCGCACGGU Amino acid sequence: The amino acids will form a protein Serine – Histidine – Glycine

  15. Example • Convert the following DNA sequence to mRNA then to amino acid chain. GTAGCAATG

  16. http://www.youtube.com/watch?v=983lhh20rGY&feature=related • http://www.youtube.com/watch?v=D3fOXt4MrOM&feature=related

  17. Homework Read 10.6-10.15 W/S

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