BIOL 206 Lecture 12: Lecture 12
7 Mar 2016
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Document Summary
To understand that proteins are encoded by genes through two major steps. Degeneracy is a characteristic of the genetic code that lowers the likelihood of mutation. Happens when dna has been transcribed onto mrna which leaves the nucleus and moves into cytoplasm. mrna combines with ribosomes to create proteins. Process of reading the mrna and building protein is called translation or. Translation takes places in the cytoplasm in the ribosomes. An mrna molecule can be translated by multiple ribosomes at same time. Termination mrna, trna and ribosome come together trnas bring amino acid to ribosome for incorporation into the polypeptide (protein) Ribosome encounters a stop codon and releases polypeptide (protein) Language is based on 3 letter words (codon) Picks up amino acid in cytoplasm and carries them to ribosome. Anticodon of start codon is uac from aug trna with anticodon uac carries amino acid methionine, which is also the start codon.
