noun
- heterogamous state.
noun
- a type of sexual reproduction in which the gametes differ in both size and formCompare isogamy
- a condition in which different types of reproduction occur in successive generations of an organism
- the presence of both male and female flowers in one inflorescenceCompare homogamy (def. 1)
n.
- The state or condition in which conjugating gametes are dissimilar in structure and size as well as in function.
- Alternation of sexual and parthenogenetic generations, as in the life cycles of some aphids.
- A reproductive system that is characterized by the fusion of gametes (called heterogametes) that are dissimilar in size and structure, such as the egg and sperm of animals.