Using the figure above (used for previous question), what would be the codon sequence for the following amino acid sequence:

Question

Gly-Thr-Phe

(1 point)
Responses

CAU-CAA-AGU
CAU-CAA-AGU

GUU-UUC-GGC
GUU-UUC-GGC

AUG-ACC-UGA
AUG-ACC-UGA

GGC-ACC-UUC

Answer 1

To determine the codon sequence for the amino acid sequence Gly-Thr-Phe, we first need to know the codons associated with each of these amino acids:

• Glycine (Gly) is encoded by the codons GGU, GGC, GGA, or GGG.
• Threonine (Thr) is encoded by the codons ACU, ACC, ACA, or ACG.
• Phenylalanine (Phe) is encoded by the codons UUU or UUC.

Now we can match the amino acids to their respective codons.

For the sequence Gly-Thr-Phe, one possible codon sequence is:

• Gly (Glycine) → GGU
• Thr (Threonine) → ACC
• Phe (Phenylalanine) → UUC

Putting it together, we get the codon sequence: GGU-ACC-UUC.

Among the provided options, the closest match is:

GGC-ACC-UUC (noting that GGC is another codon for Glycine, which would also work for encoding Glycine).

Therefore, the correct response is GGC-ACC-UUC.