Here's a breakdown:

* Oogenesis: The process of female gamete (egg cell) production.

* Haploid: Containing only one set of chromosomes.

* Ovum (egg cell): The mature female gamete.

Key points to remember:

* Oogenesis starts with a diploid cell (oogonium) and produces one functional haploid ovum and several non-functional polar bodies.

* This process ensures that the egg cell contains only half the number of chromosomes as the parent cell, ready to fuse with a sperm cell during fertilization.