Detailed Instructions: Convert a disfluent question to a proper question. A disfluent question is a question that has some interruptions in it while framing. A proper question is the correct form of the question without any disfluency.
Problem:What has the presence of hox genes believe that ctenophores are the sister lineage to what been the focus of for many years?
Solution:
What has the presence of hox genes been the focus of for many years?