Eggs which have yolk in the centre surrounded by cytoplasm are called :

Options

A. centrolecithal
B. homolecithal
C. microlecithal
D. alecithal

Answer

To answer the question regarding the type of egg that has yolk in the center surrounded by cytoplasm, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for a specific type of egg where the yolk is centrally located and is surrounded by cytoplasm.

2. **Identify the Options**: The options provided are:
- A) Centrolecithal
- B) Homolecithal
- C) Microlacithal
- D) A-lecithal

3. **Analyze Each Option**:
- **Option A: Centrolecithal**: In this type of egg, the yolk is indeed located at the center of the egg and is surrounded by cytoplasm. This matches the description given in the question.
- **Option B: Homolecithal**: This type of egg has a small amount of yolk that is distributed uniformly throughout the cytoplasm, which does not fit the description.
- **Option C: Microlacithal**: This type of egg contains very little yolk, which also does not match the requirement of having yolk in the center.
- **Option D: A-lecithal**: The prefix "a" means absent, so this type of egg has no yolk at all, which is not what we are looking for.

4. **Conclusion**: Based on the analysis, the only option that fits the description of having yolk in the center surrounded by cytoplasm is **Option A: Centrolecithal**.

### Final Answer:
The correct answer is **A) Centrolecithal**.

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