Flower Reproduction: Gamete Formation Sites Steps: - Label standard flower parts: 1 as anther (male), 2 as stigma (pollination site), 3 as ovule (female gamete site), 4 as ovary. - Recall meiosis produces haploid gametes: pollen (male) in anther, egg cells (female) in ovule. - Evaluate options: A wrong as fertilization is only in ovule; B correct as ovule meiosis yields haploid female gametes; C partially right but pollen lands on stigma, not fuses; D wrong as fusion occurs inside ovule. - Confirm B via process: Haploid nuclei form in embryo sac at 3. Why B is correct: - In angiosperms, haploid female gametes (egg and polar nuclei) form via meiosis in the ovule's megaspore mother cell, defining site 3. Why the others are wrong: - A: Fertilization occurs only in the ovule (double fertilization), not at anther (1) or stigma (2). - C: Pollen transfers to stigma (2) for germination, but insects carry it there, not "to 2" implying fusion. - D: Pollen tube delivers sperm to fuse with female nuclei in the ovule's embryo sac, not at stigma …