As of a few years ago, Iowa State or University of Iowa (not sure which one) offered a two term online biochemistry course. The first term was well organized with professional notes, but the second term was a mess. I recall tutoring a few students in these classes and I could not make much sense of the almost illegible notes for the second term. Perhaps things have changed in the years since....
I do have the creation of an online biochemistry course on my long term to-do list, but I have not had time to pursue it.