1. In flowering plants, meiosis in a(n) produces spores that develop into the male gametophytes. 2. A male gametophyte, which produces sperm, is also known as a(n) . 3. Meiosis in a(n) results in a spore that develops into a female gametophyte, which produces an egg. 4. Pollination occurs when a pollen grain lands on a(n) . 5. After fertilization occurs, an ovule develops into a(n) . 6. When a(n) matures, it becomes a fruit.