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mRNA codon wheel Name: __________________________________ Coding Exercises For the following DNA strands, give the base order for the complementary strand of DNA. 1. DNA: A T T C G A G C C T C T G A T G A C DNA: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2. DNA: T G C C A C T G T C A G A A G C T A DNA: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ For the following DNA strands, give the mRNA bases that would be transcribed from it. 3. DNA: C C G A T A G T C A G T T A G C T A C G C T A C mRNA: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Write the complementary tRNA bases that would be translated from the mRNA strand. 4. mRNA: U A G C G A U U G A A C G G U A A U G U C A C U tRNA: : _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Now put it all together and show how a protein is made. Combine what you know about complementary base pairing, and the use of the chart at the top of the page to determine the amino acid coded for by mRNA. DNA: T A C C C A A A T C G T A A C T G C G T G A G G A T C 5. transcribed to mRNA: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 6. translated by tRNA: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 7. amino acid carried by: ee tRNA Mutations occur when there is a spelling error in the DNA code. Show what would happen step by step if the 8th letter in the DNA strand from above was changed to a āGā. Use the chart at the top of the page to determine the amino acid coded for by mRNA DNA: T A C C C A A G T C G T A A C T G C G T G A G G A T C 8.transcribed to mRNA _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 9.translated by tRNA _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 10. amino acid carried by: tRNA 11. What is the significance of this mutation? Be specific. Use chapter 12, the slide presentation and suggested videos to help you complete the crossword puzzle. All the words at the bottom of the page will be used. (gene) (phosphate) (mutation) (double helix) (bases) (codon) (replication) (sugar) (complementary) (amino acids) (transcription) (ribosome) (genetic engineering) (DNA polymerase) (mRNA) (tRNA) (plasmid) (ligase) (translation) (helicase) (RNA polymerase) (restriction enzyme) (nucleotide) (uracil) (protein) (anti codon)