An experimental vaccine was developed for what disease by injecting beta-amyloid into mice, which stimulated antibodies to the protein and reduced the number of plaques?

where is the scientific experiment?

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.