Which choice has allowed scientists to learn about the internal structure of the mitochondrion? 1
studies of the chemical activity of enzymes
2.
the development of wet-mount techniques
3.
electron microscope studies
detailed studies of chromosomes

answer; atp and nadph;

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.