When do the oogenesis and the spermatogenesis initiate in human females and males respectively?

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Oogenesis:**
- Oogenesis is the process that leads to the formation of ova (female gametes) in human females. It is crucial to understand that this process is initiated during embryonic development.

2. **Initiation of Oogenesis:**
- In human females, oogenesis begins during the embryonic stage. Specifically, it starts when the female fetus is developing in the womb. This means that the formation of primary oocytes occurs before birth.

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