Each characteristic or event given below applies to mitosis, meiosis, or both. Indicate the types of cell division in the lines provided.
One cell divides two times to form four cells `"________"`
Formation of gametes (egg and sperm) `"________"`
Zygote (fertilised egg) divides to form the trillion- celled baby `"________"`
Daughter cells have the identical chromosomes as the parent cell `"________"`
Pairing up and crossing-over between homologous chromosome pairs occurs at prophase. `"________"`

Explanation

To solve the question, we need to identify whether each statement relates to mitosis, meiosis, or both. Let's analyze each statement step by step.

1. **One cell divides two times to form four cells**:
- This process is characteristic of **meiosis**. In meiosis, one diploid cell undergoes two rounds of division (meiosis I and meiosis II) to produce four haploid cells.
- Answer: **Meiosis**

2. **Formation of gametes (egg and sperm)**:
- Gametes are produced through the process of **meiosis**. This is the specialized type of cell division that results in the formation of sperm and egg cells.
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