Meiosis leads to a reduction in cell size, particularly in the context of gamete formation, as seen in oogenesis and spermatogenesis. After meiosis, the resulting sperm and oocytes are smaller than their precursor cells. This size change is significant for the efficiency of sexual reproduction. Understanding these processes can be found in biology textbooks covering meiosis. The discussion emphasizes the importance of meiosis in producing smaller, specialized reproductive cells.