middle-sized plants short plants tall plants some tall and some short plants
I gave my students this multiple choice question: In pea plants, tall is dominant over short. What size pea plants will result when a pure tall plant is crossed with a pure short plant?

Only one answer is correct among these 4 choices:
- middle-sized plants
- short plants
- tall plants
- some tall and some short plants

Could you tell me which one is correct?

tall plants