Define zygote and gametes

A zygote is the initial cell formed when two gametes, which are reproductive cells, fuse during fertilization. This single cell contains genetic material from both parents and marks the beginning of a new organism's development.

Understanding Gametes

Gametes are specialized cells involved in sexual reproduction. In humans and many other organisms, there are two types of gametes:

• Sperm: The male gamete, which is typically small and mobile.
• Egg (Ovum): The female gamete, which is larger and usually stationary.

The Role of Zygotes

Once the sperm fertilizes the egg, the zygote undergoes cell division and eventually develops into an embryo. This process is crucial for the continuation of a species, as it combines genetic information from both parents, leading to genetic diversity.