If you have several letters, turn them all in at once. Get your requests in ahead of time. Evaluators in the Biology Department require 3 weeks notice to properly prepare a letter of recommendation. Your professors can not be held responsible for meeting deadlines unless they have been given appropriate advance notice. Deadlines for application to graduate schools are usually in February, although some may be as early as December.
Most professional schools conduct interviews during the winter and spring terms.
If the candidate desires, the Biology Department can schedule a 'practice' interview. Notification Acceptances are usually announced in March or April. You may be accepted, rejected or placed on a waiting list. Rejected Applicants Meet with your adviser to discuss the options open to you. You may wish to take steps to improve your candidacy, or you may choose to pursue a different goal.