Which of the following embryonic layer formed gametes :

Options

A. Ectoderm
B. Endoderm
C. Mesoderm
D. Mesoderm

Answer

**Step-by-Step Solution:**

1. **Understanding Germ Layers**: The human embryo develops three primary germ layers during the process of embryogenesis: ectoderm, mesoderm, and endoderm. Each of these layers gives rise to different tissues and organs in the body.

2. **Identifying the Germ Layers**:
- **Ectoderm**: The outermost layer, which develops into the skin, nervous system, and other structures.
- **Mesoderm**: The middle layer, which forms muscles, bones, and the circulatory system.
- **Endoderm**: The innermost layer, which develops into the digestive system, liver, and lungs.

3. **Focus on Gamete Formation**: The question specifically asks about which embryonic layer is responsible for forming gametes (sperm and eggs).

4. **Role of Endoderm**: The endoderm is crucial in the development of the reproductive system, including the formation of gametes. It is involved in the development of the gonads (testes and ovaries) where gametes are produced.

5. **Conclusion**: Based on the roles of the germ layers, the correct answer to the question is that the **endoderm** is the embryonic layer that forms gametes.

**Final Answer**: The embryonic layer that forms gametes is the **endoderm**.

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