Answer:
5'-AUGCGUAGCUUGGAGUGA-3'
Explanation:
(a) Break the string into triplets.
5'-AUG-CGU-AGC-UUG-GAG-UGA-3'
The string contains six codons.
The initiation codon is AUG (Met)
That eliminates Options 1 and 4.
(b) Identify the stop codon
There are six codons, so the sixth is the stop codon, which must be UAA, UGA, or UAG
.
That eliminates Option 2, which ends with UGG.
The correct answer must be Option 3.
(c) Check
Translate the codon string.
5'-AUG-CGU-AGC-UUG-GAG-UGA-3
met arg ser leu glu stop
That's the correct sequence.
