Studying in graduate school and helping instructors with undergraduate students in USA have made me feel that there is pretty big jump between the knowledge that average senior (4th year of undergrad) possesses and what the 1st year graduate student is supposed to have. As a result, getting to graduate program seems to be very scary for some students. Another fear is the research that many of them are not familiar with.
What is your experience? Is this transition smooth in your institution?