Topic suggestions for my presentation

Hey guy's.

I am a new biotech student (also new to this forum), this is my first semester and i have been asked to work on a presentation with a group of students in my basic biotech course, the professor left the choice of the topic up to the groups. So i need your help choosing a topic, as i am just having a hard time choosing something suitable as the field is very huge and diverse.

All suggestions appreciated, just keep this in mind. i need a subject that is both simple but something i can turn into a presentation.

Sorry if i left something out, just ask me and ill be more than happy to respond.
thanks.