Given the task definition and input, reply with output. Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.

Question: Does delta opioid activation of the mitogen-activated protein kinase cascade require transphosphorylation of receptor tyrosine kinases?
Answer: Taken together, these data suggest that the transactivation of resident RTKs does not appear to be required for OR-mediated ERK phosphorylation and that the tyrosine-phosphorylated delta-OR, itself, is likely to act as its own signalling scaffold.
no