I'm also a Bio student

high five to that! Yeah these topics do get brought up a lot in class. We had many topics on discussions of gender vs. sex in many of my courses actually. In Anthro and Bio, the profs brought up that 1 in 100 children are born with ambiguous genitalia and we actually had a whole lecture or a few on trans people around the world and how it's accepted. The book required for my Anthro course was actually called "Beyond Bodies" which was mandatory reading for the entire class. People generally took it really well. When we had to write a paper on any of the topics discussed during the year, "Gender, sex, and sexuality" was by far the most popular.
In Bio, we have these things called iClickers where if the prof sets up a question on a powerpoint and we can push a button on the iClickers and it'll get recorded (sort of like Who Wants to be a Millionaire for the entire class). During the sex/gender lecture, the prof brought up an article about a female athlete that did really well in a competition but her biological sex was brought into question. Turns out she was intersexed and the question posed to the class was "Would you take back the gold medal/disqualify her?" and the vast majority of the class 85%+ said No. I think there was also a question along the lines of what would you refer to this person as and also the majority said female. After we had all given our answers and seen the results, the prof informed us that she WAS infact disqualified and her medal was taken away and the class became upset.
So, all in all, some lectures can be in our favour (giving us exposure and providing a more understanding outlook on such individuals). Most people are become very interested and understanding of the topics posed and I think this generation is a bit kinder with situations like this.
Biology can be very interesting and show how CLOSE males and females really are as opposed to how different they can be. For example, all males were female for 3 months or so of their life in the womb. Many factors play a part in then changing the female fetus into a male one hence giving many opportunities for this to "mess up". In my final opinion, I see Biology as a way of proving how trans people really aren't that strange after all and it's not a mental disorder. I hope your school turns out to be as open-minded as mine was to all these subjects

good luck this year.