Medical scientists usually need a doctorate degree in biological science. Some medical scientists have medical degrees. Medical scientists typically complete courses in biology, chemistry, physics, engineering, mathematics, and computer science.
Status: Medical Student (Accepted) AMCAS states that it usually takes ~4-6 weeks for verification to go through, but looking at the verification trend right now here: http://forums.studentdoctor.net/threads/2014-2015-verification-thread.1076112/ I would say you're looking at 3-4 weeks from the time of submission.
Once IDFPR has approved you to take the FE exam, you must register online with Continental Testing Service (CTS) for an exam site (there are typically 4 sites in Illinois available at each offering of the FE). The CTS registration deadlines for the April and October tests are typically 1 month before the exams.