In animal cells, meiotic cell division occurs during ________formation.

Explanation

**Step-by-Step Solution:**

1. **Understanding Meiosis**: Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four haploid cells from one diploid cell. It is essential for sexual reproduction.

2. **Identifying the Context**: The question specifically asks about animal cells and where meiotic cell division occurs. In animals, meiosis is crucial for the formation of reproductive cells.

3. **Formation of Gametes**: In animals, meiotic cell division occurs during the formation of gametes, which are the sperm and egg cells. This process is vital for sexual reproduction.

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