What is the union of heterogametes?

The union of heterogametes refers to the fusion of two different types of gametes, typically involving one male gamete (sperm) and one female gamete (egg). This process occurs during sexual reproduction and results in the formation of a zygote, which has a unique genetic combination from both parents. Heterogametes are characterized by differing sizes and forms, with sperm being generally smaller and motile, while eggs are larger and non-motile. This union is essential for genetic diversity and the continuation of species.