DNA_problems

DNA_problems - mRNA was derived. Be sure to label the 3 and...

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PROBLEM SOLVING: DNA REPLICATION / TRANSCRIPTION / TRANSLATION 1. Use the attached codon dictionary to complete the following table. Assume that reading is from left to right and that the columns represent transcriptional and translational alignments. Label the 5 ʼ and 3 ʼ ends of the DNA and RNA. C DNA T G A double helix C A U mRNA transcribed G C A tRNA anticodon Trp amino acid translation 2. An mRNA has the following sequence: 5 ʼ - GGCGAUGGGCAAUAAACCGGGCCAGUAAGC-3 ʼ (a) Identify the start codon and determine the complete amino acid sequence that would be translated from this mRNA. (b) Give the antisense and sense strands (properly labeled as such) from which this
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Unformatted text preview: mRNA was derived. Be sure to label the 3 and 5 ends in each case. (c) What happens to the amino acid sequence if there is a base substitution in the third position of the second codon (of the translated portion)? (d) What happens if there is an insertion of an A after the second codon? 3. If a tRNA molecule carries a glutamic acid, what are the two possible anticodon sequences that it could contain? Be speciFc about the 5 and 3 ends. BLY 302 Fall 2010 BLY 302 Fall 2010...
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DNA_problems - mRNA was derived. Be sure to label the 3 and...

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