"check on whether" is a correct and usable phrase in written English.
You can use it to ask someone to look into the status of something. For example, "Can you please check on whether the team has finalized their presentation yet?".
To check on whether these genes contribute to human cancer, the researchers--from Johns Hopkins School of Medicine in Baltimore and Case Western Reserve University in Cleveland--focused on a yeast gene, called BUB1, that has a human equivalent, hBUB1.
No report card to Mom, and nobody to check on whether I went to class".
"There is no proactive check on whether the passport is stolen," the State Department official said.
"One needs to do a reality check on whether the assumptions are proved right," she said.
No dreams intruded, and no cops knocked on the windows to check on whether we were runaways.
(To check on whether you have sufficient insulation, you can consult the North American Insulation Manufacturers Association's site, www.naima.org).
Similarly, the company is checking on whether it can use the new generic version of Mevacor, an older cholesterol treatment.
Even now, with faster equipment finally installed and the backlog pared to about three weeks, the Salvation Army's office in New York is still getting 75 to 100 calls a day -- "angry calls," Mr. Peck said -- from families anxiously checking on whether their overdue bills for crucial services have been paid.
In 1963, the publicity director at Disneyland told Kevin Wallace, a reporter from this magazine, "You never know when you'll bump into Walt prowling around the park in an old sweater, checking on whether a dead light bulb he reported a week earlier has been replaced".
The following day, university security staff replied to police with their plans for managing the debate, adding :" In terms of the request for names of the attendees, I have been advised that the university is checking on whether there's a data protection issue with us releasing names before I can be authorised to share this information".
Theorists checked on whether or not other effects might mask the predicted polarization effect.
