Answer: The pollen tube must grow down the style to the ovule.
- A Meiosis occurs in the zygote
- B The ovary wall must first develop into a fruit
- C The pollen tube must grow down the style to the ovule
- D The stigma must mature first
Correct answer: C. The pollen tube must grow down the style to the ovule
Explanation: After pollination the pollen grain germinates and the pollen tube must grow down the style to reach the ovule before syngamy can occur.
Structure of a mature flower. Image: LadyofHats (Mariana Ruiz), Public Domain, via Wikimedia Commons.
Concept context
Asexual and sexual reproduction, flower anatomy, pollination, fertilization, and seed development.