thumb|Different forms of anisogamy: A) anisogamy of motile cells, B) oogamy ([[egg cell and sperm cell), C) anisogamy of non-motile cells (egg cell and spermatia).|283x283px]]
thumb|Different forms of anisogamy: A) anisogamy of motile cells, B) oogamy ([[egg cell and sperm cell), C) anisogamy of non-motile cells (egg cell and spermatia).|283x283px]]
Anisogamy is a form of sexual reproduction that involves the union or fusion of two gametes that differ in size and/or form. The smaller gamete is male, a microgamete or sperm cell, whereas the larger gamete is female, a larger macrogamete or typically an egg cell. Anisogamy is predominant among multicellular organisms. In both plants and animals, gamete size difference is the fundamental difference between females and males.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).