Question

part 4.5: decoding genetic informationto build a protein, a cell must first convert dna into mrna (transcription) and then translate that mrna into amino acids.directions: complete the table below. the first step has been done for you as an example.find 1st base (left), 2nd base (top), then 3rd base (right) to find the amino acid.step | genetic sequencedna template | tac-gga-ttc-gcc-actmrna codon | aug-__---amino acid | met (start)----__important reminder: when using a codon chart, always use the mrna sequence (the middle row), not the dna!

Explanation:

Step1: Transcribe DNA to mRNA

DNA pairs: T→A, A→U, C→G, G→C.
DNA: TAC - GGA - TTC - GCC - ACT
mRNA: $AUG - CCU - AAG - CGG - UGA$

Step2: Map mRNA to amino acids

Use the codon chart:

• $CCU$ → Pro
• $AAG$ → Lys
• $CGG$ → Arg
• $UGA$ → Stop

Answer:

Step	Genetic Sequence
mRNA Codon	AUG-CCU-AAG-CGG-UGA
Amino Acid	Met (Start)-Pro-Lys-Arg-Stop