Bio-RNA Translation

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Author:
bananavocado
ID:
59863
Filename:
Bio-RNA Translation
Updated:
2011-11-20 13:23:13
Tags:
Bio RNA Translation
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Description:
Bio-RNA Translation
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  1. What is a protein?
    a polymer (collection) of amino acids (monomers).
  2. What's Translation?
    Under who's direction?
    Where?
    • -the making of proteins!
    • -under the direction of mRNA
    • -Ribosome
  3. 1st step of Translation?
    mRNA leaves, goes to the ribosome and bonds to rRNA
  4. 2nd step of Translation?
    • tRNA brings in the right amino acid based on complementarity.
    • Each tRNA carries a specific amino acid.
  5. What is a codon?
    What is an anticodon?
    • -codon: 3 nitrogenous bases on mRNA
    • -anticodon: nitrogenous bases on tRNA
  6. What codon is the "start signal"?
    What type of amino acid is it?
    • -AUG
    • -methionine
  7. 3rd step of Translation?
    • the tRNA comes in, the amino acid from tRNA is transferred to the next tRNA.
    • as the mRNA moves through the robosome, the tRNA leave the ribosome to get another amino acid from the cytoplasm.
  8. 4th step of Translation?
    process continues until a "stop codon" is reached. mRNA separates from the ribosome.
  9. what are the "stop codons"
    UAA, UAG, UGA
  10. example:
    What is the codon and the anticodon of this DNA?

    ATC-GCA-TGC-AAT
    codon: UAG-CGU-ACG-UUA

    anticodon: AUC-GCA-UGC-AAU
  11. If asked to Translate this codon:

    CCA-GAU-AUG-CUC-GAU

    what do you do first? 2nd?
    • 1.)START with AUG. (forget the first two)
    • if asked to transCRIBE...then include the first two.
    • 2.) since it's mRNA, either choose to do DNA or tRNA first.

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