Cleavage of Frog's egg is

Options

A. Meroblastic
B. Holoblastic
C. Heteroblastic
D. Diploblastic.

Answer

### Step-by-Step Solution:

1. **Understanding Cleavage**: Cleavage refers to the series of rapid cell divisions that occur after fertilization, leading to the formation of a multicellular embryo.

2. **Types of Cleavage**: There are different types of cleavage based on the amount and distribution of yolk in the egg:
- **Holoblastic Cleavage**: Complete cleavage where the entire egg is divided into smaller cells (blastomeres). This type occurs in eggs with little yolk.
- **Meroblastic Cleavage**: Incomplete cleavage where only a part of the egg is divided, typically seen in eggs with a large amount of yolk.
- **Aminoblastic Cleavage**: A type of cleavage that is not commonly discussed in the context of frog eggs.
- **Heteroblastic Cleavage**: Refers to uneven cleavage, where some areas divide more than others.

3. **Frog Egg Characteristics**: Frog eggs have a moderate amount of yolk that is evenly distributed, which allows for complete cleavage.

4. **Conclusion**: Since frog eggs undergo complete cleavage due to the relatively low amount of yolk, the type of cleavage observed in frog eggs is classified as **holoblastic cleavage**.

5. **Final Answer**: The correct answer to the question "Cleavage of Frog's egg is" is **option b - holoblastic**.