In human beings the egg are

Options

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

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the type of eggs present in human beings. We need to analyze the options provided to determine which one correctly describes human eggs.

2. **Analyzing the Options**:
- **Mesolecithal**: This term refers to eggs that contain a moderate amount of yolk. These are typically found in amphibians, such as frogs. Since human eggs do not fit this description, this option is incorrect.

- **Alecithal**: This term describes eggs that do not contain any yolk at all. Human eggs fall into this category, as they do not have yolk. Therefore, this option is a strong candidate for the correct answer.

- **Microlecithal**: This term refers to eggs that contain a very small amount of yolk. This type of egg is found in organisms like Amphioxus. Since human eggs do not fit this description, this option is incorrect.

- **Macrolecithal**: This term describes eggs that contain a large amount of yolk. Such eggs are typically found in birds, like hen's eggs. Since human eggs do not fit this description, this option is also incorrect.

3. **Conclusion**: After analyzing all the options, we find that human eggs are classified as **alecithal**, meaning they do not contain any yolk. Therefore, the correct answer is option 2: alecithal.

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