Fill in the following blanks with suitable words:
The cells involved in sexual reproduction are called ……….

Explanation

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

1. **Understanding the Question**: The question asks for the name of the cells involved in sexual reproduction.

2. **Identifying Key Terms**: In sexual reproduction, specific types of cells are responsible for the process. These cells contain genetic material that is necessary for the formation of a new organism.

3. **Defining the Cells**: The cells that are involved in sexual reproduction are known as gametes.

4. **Characteristics of Gametes**:
- Gametes are haploid cells, meaning they contain half the number of chromosomes (N) compared to diploid cells (2N).
- They are produced through a process called meiosis.

5. **Types of Gametes**:
- The female gamete is called an ovum (or egg).
- The male gamete is called a sperm.

6. **Fusion of Gametes**: During reproduction, the male and female gametes fuse to form a zygote, which is a diploid cell (2N) that develops into a new organism.

7. **Final Answer**: Therefore, the cells involved in sexual reproduction are called **gametes**.

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