Dr Frank Ellis was suspended from his post as a lecturer at Leeds University pending disciplinary procedures.
The university emphasised that the suspension was not itself a penalty but said it had been deemed appropriate given "the seriousness of the issues".
The lecturer in Russian and Slavonic Studies told a student newspaper there was a "persistent gap" in IQ levels.
More than 500 students signed a petition calling for him to be sacked.
Many of them later demonstrated in Leeds against his views.
Leeds University had previously said that those views were "abhorrent" but there was no evidence he had discriminated against students.
'Issues'
But on Thursday, university secretary Roger Gair said in a statement that details of the disciplinary process "must remain a private matter" between employer and employee.
But he said three issues were being looked into.
Mr Gair said the university was "clearly and publicly distancing itself" from his comments.
"Given the seriousness of the issues I have been outlining, the vice-chancellor, Professor Michael Arthur, has decided to suspend Dr Ellis from his duties while the disciplinary process is underway," he said.
He added: "I must emphasise that suspension is not in itself a disciplinary penalty."
Dr Ellis has expressed support for the Bell Curve theory, examined in a book by Richard Hernnstein and Charles Murray, which concludes that ethnicity can play a part in IQ levels.
He has previously maintained he has never treated a black student differently to a white student, and said he had "done nothing wrong".
Labelling him a racist was "an attempt to close down any discussion" and an attack on his freedom of speech, he said.
The disciplinary process might take some time to complete - possibly months.
The university said it intended to make no further public comment until it had been concluded.
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