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Download DNA is converted into mRNA Transcription happens in the Nucleus
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What happens during TRANSCRIPTION? DNA is converted into mRNA Where does transcription happen? Transcription happens in the Nucleus Draw and label the process of transcription: DNA is too large and must stay in the nucleus. Therefore, a messenger that is smaller and can fit Why not just send DNA to the ribosome? Why must there be a out the nuclear pores messenger? must be created to convey the sequence of nitrogen bases on DNA The following strand of DNA is used to begin the process of Protein Synthesis: ATCCTAGCACGATCG RNA Polymerase will come in and unzip the DNA What will happen next? Transcribe the following DNA strand: UAGGAUCGUGCUAGC ATCCTAGCACGATCG How many codons exist in the strand? 5 Codons What are start and stop codons? Start: AUG (Met) Stop: UAG, UAA, UGA AUG which codes for Met is always the first What codon always starts a new polypeptide codon and amino acid chain? in each new polypeptide. What happens during TRANSLATION? mRNA is translated into amino acids Where does translation happen? The following strand of DNA is used to begin the process of Protein Synthesis: TACCTCGCACGTTCG Translation happens in the Ribosome (small and large sub units) mRNA: AUGGAGCGUGCAAGC Determine what amino acids will be created by the above strand of DNA amino acids: Met-Glu-Arg-Ala-Ser How will amino acids join together? Amino acids join together via a peptide bond Label the structures below and describe what happens during translation 1 – amino acid 2 – tRNA 3 – mRNA 4 – codon 5 – ribosome (large & small subunit)
