Cells formed as a result of cleavage are called

Options

A. Megameres
B. Micromeres
C. Blastoderm
D. Blastomeres

Answer

**Step-by-Step Solution:**

1. **Understanding Cleavage**: After fertilization, the zygote undergoes a series of mitotic divisions known as cleavage. This process does not increase the overall size of the embryo but divides the zygote into smaller cells.

2. **Formation of Morula**: The first few divisions of the zygote lead to the formation of a solid ball of cells called the morula. This typically occurs after about four mitotic divisions.

3. **Further Division to Blastocyst**: As cleavage continues, the morula undergoes more divisions, increasing the number of cells. Eventually, it transforms into a structure known as the blastocyst, which consists of approximately 32 cells.

4. **Identification of Cells**: The individual cells that are formed during the cleavage process are specifically referred to as blastomeres.

5. **Conclusion**: Therefore, the cells formed as a result of cleavage are called blastomeres.

**Final Answer**: Cells formed as a result of cleavage are called **blastomeres**.

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