What is correct about gametes ?

Options

A. They are diploid
B. They are produced by mitosis
C. They are always flagellated
D. They are always haploid

Answer

### Step-by-Step Solution:

1. **Definition of Gametes**:
- Gametes are reproductive cells involved in sexual reproduction. They are produced through a specific type of cell division known as meiosis.

2. **Meiosis Process**:
- Meiosis is a reduction division process where a diploid cell (2n) divides to form haploid cells (n). This means that the chromosome number is halved during gamete formation.

3. **Types of Gametes in Humans**:
- In humans, the female gamete is called the ovum (or egg), and it is produced from cells known as oogonia. The male gamete is called sperm, produced from spermatogonia.

4. **Ploidy of Gametes**:
- Gametes are always haploid (n) because they need to combine during fertilization to form a diploid zygote (2n). This ensures that the resulting organism has the correct number of chromosomes.

5. **Incorrect Statements About Gametes**:
- It is incorrect to say that gametes are diploid; they are always haploid.
- While sperm can be described as having a flagellum (tail), not all gametes are flagellated. For instance, ova do not have a flagellum.

6. **Conclusion**:
- The correct statement about gametes is that they are always haploid. This is essential for sexual reproduction, as it allows for the formation of a diploid zygote upon fertilization.

### Final Answer:
The correct statement about gametes is that they are always haploid.

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