Thanks guys!
I greatly appreciate your advice!

In the near future, I will have an important interview for a PhD studentship in molecular biology. Since I never had one before, I do not know what to expect and how to prepare. Therefore, it would be very helpful if somebody who has experience would give me some pointers.
What kind of questions are asked? What are the best answers? Do I have to wear a suit?

Any help will be much appreciated!!