During the process of transcription DNA is unwound into a si

During the process of transcription, DNA is unwound into a single strand exposing bases adenosine (A), thymine (T), guanine (G), and cytosine (C). These bases are complimentary, A pairs with T and C pairs with G. As the process of transcription occurs a single strand of mRNA is made. In RNA the thymine base is replaced with uracil (U). The mRNA forms groups of three bases called codons. The tRNA matches the mRNA codon to its anticodon that has the protein attached.

Decode the following DNA sequences into a chain of proteins using the codon chart that is included. Remember, a start sequence is needed to begin the chain and a stop sequence is needed to end the chain.

DNA Triplet               RNA Codon                      Amino Acid

TAC                                 AUG                              Start – Methionine

ATC                                 UAG                              Stop

AAA                                UUU                              Phenylalanine

AGG                                UCC                              Serine

ACA                                UGU                              Cysteine

GGG                                CCC                               Proline

GAA                                CUU                              Leucine

GCT                                 CGA                              Arginine

TTT                                  AAA                              Lysine

TGC                                 ACG                              Threonine

CCG                                 GGC                              Glycine

CTC                                 GAG                              Glutamic Acid

**Example:

DNA: TAC-AAA-AGG-ACA-ATC

RNA Codon: AUG-UUU-UCC-UGU-UAG

Protein: METHIONINE-Phenylalanine-Serine-Cysteine-STOP

DNA: ACA-TAC-GGG-TTT-CTC-ATC-AAA

RNA: UGU-AUG-CCC-AAA-GAG-UAG-UUU

Protein:

DNA: AAA-TAC-AAA-ATC

RNA: UUU-AUG-UUU-UAG

Protein:

DNA: CTC-CTC-TAC-AGG-TTT-GAA-ATC-CTC

RNA: GAG-GAG-AUG-UCC-AAA-CUU-UAG-GAG

Protein:

Solution

DNA: ACA-TAC-GGG-TTT-CTC-ATC-AAA

RNA: UGU-AUG-CCC-AAA-GAG-UAG-UUU

Protein: Cysteine – Methionine-Proline – Lysine- Glutamic Acid-Stop*

DNA: AAA-TAC-AAA-ATC

RNA: UUU-AUG-UUU-UAG

Protein: Phenylalanine-Methionine-Phenylalanine-Stop*

DNA: CTC-CTC-TAC-AGG-TTT-GAA-ATC-CTC

RNA: GAG-GAG-AUG-UCC-AAA-CUU-UAG-GAG

Protein: Glutamic Acid- Glutamic Acid-Methionine-Serine-Lysine-Leucine-Stop*