It is always good to have a back up program. When I went to the interview they ask me what I'm going to do if I don't get accepted. I told them I will go for a master degree in Medical Microcbiology and Immunology and reapply next year. They were very impress how I plan everything as soon as I get out of undergrad. But it is also good for you so you can rely on something, work a little bit before you can reapply. Look good on your records that you have consistency in your head.!!!!!