Refer to the figure. If the base inosine is available, the smallest number of hypothetically possible tRNAs that could be used to translate these two sequences would be
A) 1.
B) 2.
C) 3.
D) 4.
E) 5.

Question

Refer to the figure.  If the base inosine is available, the smallest number of hypothetically possible tRNAs that could be used to translate these two sequences would be
A) 1. 
B) 2. 
C) 3. 
D) 4. 
E) 5.

Quizplus · Accepted Answer

Both sequences have codons that can be recognized by a single tRNA with the anticodon UAU (specifically the tRNA for tyrosine). Therefore, at least two tRNAs are needed to translate the two sequences, one for each of the other codons in the sequences.

Refer to the Figure