Which of these is not an example of radiation
a. a floor heating vent sending warm air throughout the room

b. you stand in the sunshine and feel warm

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.