Lesson #11 handout -correct.docx - Lesson#11 u2013 Genes...

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Lesson #11 – Genes and Mutations Assignment Answer the questions directly on this page and submit your completed assignment to the Lesson 11: Assignment - Genes and Mutations dropbox. Answer the questions below based on the following template DNA strand: CTT TTA TAG TAG ATA CCA CAA AGG 1. Write out the complementary mRNA that matches the DNA above . GAA AAU AUC AUC UAU GGU GUU UCC 2. Write the corresponding amino acid sequence. Glu Asn Ile Ile Tyr Gly Val Ser 3. Change the nucleotide in position #15 to C (in the original DNA template strand). CTT TTA TAG TAG ATC CCA CAA AGG 4. What type of mutation occurred in question #3? It’s a base substitution mutation (nonsense mutation) 5. Repeat steps 1 & 2 showing the impact of the mutation: i) Write out the complementary mRNA that matches the DNA in question #3: GAA AAU AUC AUC UAG GGU GUU UCC ii) Write the corresponding amino acid sequence. Glu Asn Ile Ile Stop 6. How has this change affected the amino acid sequence?

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