Heterogamy

Definition

A condition in which the sexual reproduction of an organism involves the union of gametes with different morphologies, typically male and female.

Etymology

From Greek 'heteros', meaning 'different', and 'gamos', meaning 'marriage'.

Example

Heterogamy is observed in many insect species where males and females have distinct morphologies.

Related Terms

• Sexual dimorphism
• Gametes
• Fertilization

Usage Notes

Heterogamy contrasts with homogamy, where gametes are similar in morphology.