Two cells that fuse to give zygote is called -

Options

A. gametes
B. embryo
C. foetus
D. ovum

Explanation

To answer the question "Two cells that fuse to give zygote is called -", we need to identify the correct terminology related to reproduction.

### Step-by-Step Solution:

1. **Understanding the Zygote Formation**:
- A zygote is formed when two reproductive cells, or gametes, fuse together. This is the initial stage of development in sexual reproduction.

2. **Identifying the Types of Cells**:
- In sexual reproduction, the male gamete is called sperm, and the female gamete is called ovum (or egg).

3. **Fusing of Gametes**:
- When the sperm (male gamete) fertilizes the ovum (female gamete), they combine to form a zygote.

4. **Conclusion**:
- Therefore, the two cells that fuse to give rise to a zygote are called **gametes**.

### Final Answer:
The two cells that fuse to give zygote are called **gametes**.

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