The eggs in which fate of every part of the egg becomes fixed are called

Options

A. Cleidoic eggs
B. Non-cleidoic eggs
C. Mosaic eggs
D. Regulative eggs

Explanation

**Step-by-Step Solution:**

1. **Understanding Egg Types**: In developmental biology, eggs can be classified based on how the fate of their parts is determined during early development. The two main types are mosaic eggs and regulative eggs.

2. **Definition of Mosaic Eggs**: Mosaic eggs are characterized by the fact that the fate of each part of the egg is predetermined. This means that during the early stages of development, the cells (called blastomeres) that form from the egg will differentiate into specific tissues based on their original position in the egg.

3. **Differentiation Process**: In mosaic development, the cytoplasm of the egg is divided into distinct regions, and each region contributes to specific cell types in the developing organism. This differentiation occurs early in development, leading to a fixed fate for each part of the egg.

4. **Conclusion**: Therefore, the eggs in which the fate of every part of the egg becomes fixed are called **mosaic eggs**.

5. **Final Answer**: The correct answer is **mosaic eggs**.

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