Are tulips better than other flowers? What genes determine tulip petal color? Why do people like to look at tulips? Which color of tulips is the prettiest?
I gave my students this multiple choice question: Which question about tulips could best be answered by scientific research?

Only one answer is correct among these 4 choices:
- Are tulips better than other flowers?
- What genes determine tulip petal color?
- Why do people like to look at tulips?
- Which color of tulips is the prettiest?

Could you tell me which one is correct?

What genes determine tulip petal color?