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Transcript
NAME: ______________ Decoding DNA Use your knowledge of transcription and translation to decode this secret message! STEP 1: “Build” a mRNA molecule that is complimentary to the DNA molecule, base pair by base pair. (REMEMBER: in RNA, adenine pairs with uracil) STEP 2: Determine the tRNA codons that would compliment with the mRNA strand. STEP 3: Use the Codon Chart below to find the amino acid that each tRNA codon codes for. Write the one letter symbols to discover the secret message. DNA AGA ACA TAG CTC TTA ACG CTT mRNA UCU UGU AUC GAG __ __ __ __ __ __ __ __ __ tRNA A G A A C A U A G __ __ __ __ __ __ __ __ __ __ __ __ A.A. _Ser_ _Cys__ _______ _______ _______ _______ _______ Secret Message: _S__ ____ ____ ____ ____ ____ ____ CODON CHART tRNA AAA AAC AAG AAU ACA ACC ACG ACU AGA AGC AGG AGU AUA AUC AUG AUU sym F L F L C W C S S S S Y Y - AA Phe Leu Phe Leu Cys Trp Cys spc Ser Ser Ser Ser Tyr spc Tyr spc tRNA CAA CAC CAG CAU CCA CCC CCG CCU CGA CGC CGG CGU CUA CUC CUG CUU sym V V V V G G G G A A A A D E D E AA Val Val Val Val Gly Gly Gly Gly Ala Ala Ala Ala Asp Glu Asp Glu tRNA GAA GAC GAG GAU GCA GCC GCG GCU GGA GGC GGG GGU GUA GUC GUG GUU sym L L L L R R R R P P P P H Q H Q AA Leu Leu Leu Leu Arg Arg Arg Arg Pro Pro Pro Pro His Glu His Glu tRNA UAA UAC UAG UAU UCA UCC UCG UCU UGA UGC UGG UGU UUA UUC UUG UUU sym I M I I S R S R T T T T N K N K AA Iso Met Iso Iso Ser Arg Ser Arg Thr Thr Thr Thr Asn Lys Asn Lys
