Respuesta :
I guess the answer for this would be the DNA but i'm not sure tho, I haven't see this things since a long time.
Answer:
Silent mutation.
Explanation:
A silent mutation may be defined as a change in the single nucleotide base without any change in the amino acid and result in the formation of the same protein.
Mutation has changed a single base of tRNA strand but this does not change the protein product. This means the mutation has not changed the amino acid.
Thus, silent mutation is responsible for the change in the tRNA base