In animal cells, cytokinesis is achieved by

Options

A. Cell furrow method
B. Cell plate method
C. Both
D. None

Answer

**Step-by-Step Solution:**

1. **Understanding Cytokinesis**: Cytokinesis is the process of cytoplasmic division that occurs after mitosis, resulting in two separate daughter cells. It is essential for cell division.

2. **Cytokinesis in Animal Cells**: In animal cells, cytokinesis is characterized by the formation of a structure known as the cleavage furrow. This furrow is an indentation that forms in the plasma membrane as the cell prepares to divide.

3. **Mechanism of Cleavage Furrow Formation**: The cleavage furrow is formed by the contraction of a ring of actin filaments beneath the plasma membrane. This contraction pulls the membrane inward, leading to the separation of the two daughter cells.

4. **Comparison with Plant Cells**: In contrast, plant cells undergo cytokinesis through a different method known as the cell plate method. In this process, a cell plate forms in the middle of the cell, which eventually develops into a new cell wall separating the two daughter cells.

5. **Conclusion**: Given that the question specifically asks about animal cells, the correct method of cytokinesis is the cell furrow method.

**Final Answer**: In animal cells, cytokinesis is achieved by the cell furrow method.

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