Translation-1 - 1 Translation Protein Synthesis Decoding of...

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Unformatted text preview: 1 Translation Protein Synthesis Decoding of genetic information DNA RNA Protein Function 2 Translation Takes Place on a Ribosome The mRNA and the polypeptide chain are colinear. The AUG near the 5 end of the mRNA encodes the N-terminus of the protein. 2 Translation Takes Place on a Ribosome The mRNA and the polypeptide chain are colinear. The AUG near the 5 end of the mRNA encodes the N-terminus of the protein. 3 How could 4 nucleotides Encode for 20 Amino Acids ? 4 1 = 4 4 2 = 16 4 3 = 64 4 4 = 256 A set of 3 nucleotide Code for one amino acid (codon) Decoding 4 The Genetic Code Each of the 64 possible combinations of three nucleotides translates as one of the 20 amino acids with the exception of 3 codons that act as STOP (termination) codons. These 3-nt codons are written 5 to 3 as they appear in mRNA. AUG is the initiation codon and translates as Met in eukaryotes (fMet in bacteria) Biochemical analysis of a new life form, discovered by NASA Scientists on a remote planet, revealed that its proteins...
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Translation-1 - 1 Translation Protein Synthesis Decoding of...

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