Have to get introns out before you actually go through translation

Have to get introns out before you actually go through translation

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Have to get introns out before you actually go through translation -codon Bases in mRNA are read by the ribosome in triplets called codons (ex: AAG, ACG, CAG, GGC…) The genetic code is usually written in terms of the base triplets in mRNA (rather than in DNA, because we’re at the RNA à protein translation phase) Each codon specifies a unique amino acid in the genetic code (ex: UAU = tyrosine) Each mRNA also has a start codon (AUG) and one of three stop codons (UAG, UAA, and UGA) So one single codon can code for either one amino acid to be added, or instead signal to the ribosome “start here” or “stop here” 3 bases make 1 amino acid -transpriction:3 steps and components -translation:3 steps& components -mutation consequences Mutations are changes in the base sequence of DNA caused by mistakes during
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Unformatted text preview: replication or by various environmental factors Mutations take many forms and can affect protein function in many ways Mutations fall into five categories Inversions Translocations Deletions chapter 11 Insertions Substitutions-Gene regulation Gene regulation is the ability of a cell to control which genes are used or not at any given time Gene regulation may occur at three different levels 1. At the level of transcription, regulation determines which genes in a cell are expressed 2. At the level of translation, regulation determines how much protein is made from a particular type of mRNA 3. At the level of protein activity, regulation determines how long the protein lasts in a cell...
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