Multiple choice Which of the following statements is incorrect? A haploid sporophyte phase produces diploid spores. The gametophyte typically consists of a photosynthetic prothallus. The gametophyte produces gametes by mitosis. A sperm is mobile and flagellate. The fertilised egg grows by mitosis. Reveal answer Fill a bubble to check yourself A Correct answer Explanation A diploid sporophyte phase produces haploid spores by meiosis (a process of cell division which reduces the number of chromosomes by a half).