Egg with large amount of yolk is

Options

A. Microlecithal
B. Mesolecithal
C. Oligolecithal
D. Macrolecithal.

Answer

To solve the question "Egg with large amount of yolk is," we will analyze the options provided and determine which type of egg corresponds to having a large amount of yolk.

### Step-by-Step Solution:

1. **Identify the Types of Eggs**:
- We need to understand the different classifications of eggs based on the amount of yolk they contain. The primary classifications are microlecithal, mesolecithal, oligolecithal, and macrolecithal.

2. **Microlecithal Eggs**:
- Microlecithal eggs contain very little or no yolk. This type of egg is not what we are looking for since the question specifies a large amount of yolk.

3. **Mesolecithal and Oligolecithal Eggs**:
- Both mesolecithal and oligolecithal eggs contain a moderate amount of yolk. Mesolecithal eggs are commonly referred to in general, while oligolecithal is a term used specifically for certain animals like cephalopods. Neither of these types fits the requirement of having a large amount of yolk.

4. **Macrolecithal Eggs**:
- Macrolecithal eggs are characterized by having a large amount of yolk. These eggs are typically found in reptiles and birds (aves). This matches the criteria given in the question.

5. **Conclusion**:
- Based on the analysis, the correct answer to the question "Egg with large amount of yolk is" is **macrolecithal eggs**.

### Final Answer:
Egg with large amount of yolk is **macrolecithal**.