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Translation. Every living organism is created using the same language – A, T, C, and G. Translation. For spoken languages we have these. The language of DNA – A, T, G, and C. If each letter codes for one thing we are limited to 4 traits.

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Presentation Transcript
translation
Translation
  • Every living organism is created using the same language – A, T, C, and G.
translation1
Translation
  • For spoken languages we have these.
the language of dna a t g and c
The language of DNA – A, T, G, and C
  • If each letter codes for one thing we are limited to 4 traits.
  • If a pair of letters codes for one thing we get 4x4 = 16 combinations.
  • If a trio codes for one thing we get 4x4x4 = 64 possibilities.
3 letter code
3 Letter Code
  • mRNA is read in a 3 base code.
  • Each three bases is called a codon.
  • Codon – 3 base sequence of nucleotides on RNA
what do codon s code for
What do codon’s code for?
  • Each 3 base sequence codes for a specific amino acid that has the complimentary base pair attached to tRNA
  • tRNA – transfer RNA
  • Each tRNA molecule has an amino acid attached to it.
  • Anticodon – the three complimentary bases on the tRNA.
amino acids
Amino Acids
  • Amino Acids are the “building blocks” that are used to create peptide chains.
  • There are 20 amino acids that are coded for by mRNA
from peptide to protein
From peptide to protein
  • Peptides chains are joined to make polypeptides – which are then folded into proteins.
ribosomes
Ribosomes
  • Ribosomes – the component of cells that makes proteins from the amino acids on tRNA molecules.
  • Ribosomes are made of rRNA and protein
translation2
Translation
  • Translation is the process of reading the 3 base pair on the mRNA strand and synthesizing protein molecules.
animation
Animation
  • http://www.youtube.com/watch?v=NJxobgkPEAo
not to be outdone
Not to be outdone
  • http://www.youtube.com/watch?v=_Q2Ba2cFAew&feature=related
translation practice
Translation Practice
  • DNA – T A C A A C C G C T T T C T A
  • mRNA – A U G U U G G C G A A A G A U
  • tRNA - U A C A A C C G C U U U C U A
  • Amino - Met - Leu - Ala - Phen - Leu
reading
Reading
  • Reading: “Translating the Message in mRNA” pgs. 528-530.
  • Continue filling out the graphic organizer.
  • Tomorrow - Proteins
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