DNA Sentence- Decoding a DNA Message Through Protein Synthesis

DNA Sentence- Decoding a DNA Message Through Protein Synthesis

Your instructor will give you a simple DNA code message. Then, using complimentary base-pairing, write in the mRNA that would be created using the DNA code as a template. Once the mRNA has left the nucleus and attached onto a ribosome, tRNA will bring amino acids to the mRNA strand. Even though tRNA molecules bring the correct amino acid, scientists have a “shortcut” chart which uses the mRNA codon that would pair up with the tRNA anticodon. You will use this chart to determine the correct amino acid sequence. For each amino acid in sequence, print out the first letter of that amino acid to discover your "secret message." The accuracy of your message is related to your grade.

_________ is my DNA message number.

Copy DNA message (3 nucleotide bases to a line; the “/” separates groups of three nucleotides to make it easier to read)

______/ ______/______/ ______/______/ ______/______/ ______/______/ ______/______/ ______/______/ ______/______/ ______/______/ ______/ ______/______/ ______/______/ ______/______/ ______/______/ ______/ ______/______/ ______/______/ ______/______/ ______/______/ ______/

mRNA molecule (built to match DNA message)

______/ ______/______/ ______/______/ ______/______/ ______/______/ ______/______/ ______/______/ ______/______/ ______/______/ ______/ ______/______/ ______/______/ ______/______/ ______/______/ ______/ ______/______/ ______/______/ ______/______/ ______/______/ ______/

First letter of appropriate amino acid (This will spell out a sentence). Use your mRNA chart in your book. (Met/Start = “M” and “STOP” = a space/end of word)

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DNA CODE MESSAGES

1. ACC*TAA*TAC*AGA*ATC*AGA*TTA*AAT*GCA*TAC*TAA*ATC*GTA*CGA*AGA*ATC*

CTT*TAA*TTT*AAT*AGA*ATC