In human oogenesis, how many polar bodies are formed from a single oogonium?

In human oogenesis, a single oogonium undergoes a process of development that ultimately results in the formation of one mature ovum and three polar bodies. During the process, the oogonium first undergoes a series of mitotic divisions, eventually leading to the production of primary oocytes. Each primary oocyte then undergoes the first meiotic division, resulting in a secondary oocyte and a polar body.

Following this, the secondary oocyte undergoes the second meiotic division, which is completed only if fertilization occurs, producing another polar body along with the ovum. In total, from one oogonium, there are two meiotic divisions, which yield one mature ovum and three polar bodies. Therefore, the formation of three polar bodies is a result of the asymmetric division during meiosis, where the polar bodies do not develop into ova and are instead a means of reducing the chromosome number while conserving cytoplasmic resources in the ovum.