anisogámiáról

Anisogamy, also known as heterogamy, is a type of sexual reproduction in which the gametes (sex cells) of the conjugating organisms differ in size. Specifically, it is the fusion of two gametes that are unequal in size. This is in contrast to isogamy, where all gametes are morphologically identical. In anisogamy, there are typically two distinct types of gametes: a larger, immotile female gamete (ovum or egg) and a smaller, motile male gamete (sperm). The evolutionary advantage of anisogamy is thought to lie in the specialization of gametes. The larger egg provides a substantial resource reserve for the developing zygote, while the smaller sperm's motility allows for efficient fertilization. This differentiation in gamete size and function is a fundamental aspect of sexual reproduction in many multicellular organisms, including most animals and plants. The development of anisogamy is considered a significant step in the evolution of sex, leading to different mating strategies and often influencing sexual selection.