Which of the following attribute inhibits uncontrolled growth and thus prevents a cell from turning cancerous ?

Options

A. Metastasis
B. Malignancy
C. Contact inhibition
D. Inhibition

Answer

To solve the question "Which of the following attributes inhibits uncontrolled growth and thus prevents a cell from turning cancerous?" we will analyze each option provided.

### Step-by-Step Solution:

1. **Understanding the Options**:
- **Option A: Metastasis** - This refers to the spread of cancer cells from the original site to other parts of the body. It does not inhibit growth; rather, it indicates that cancer is spreading.
- **Option B: Malignancy** - This term describes the quality of being malignant, which means uncontrolled and aggressive growth of cancer cells. This also does not inhibit growth; it signifies the opposite.
- **Option C: Contact Inhibition** - This is a process where normal cells stop dividing when they come into contact with each other. This mechanism helps to regulate cell growth and prevents uncontrolled proliferation, which is a characteristic of cancer cells.
- **Option D: Inhibition** - This is a general term and does not specifically refer to any biological mechanism that prevents uncontrolled growth.

2. **Identifying the Correct Answer**:
- Among the options, **Contact Inhibition (Option C)** is the only attribute that directly inhibits uncontrolled growth of cells. When cells are in contact with one another, they receive signals that prevent them from dividing excessively, thus reducing the risk of becoming cancerous.

3. **Conclusion**:
- Therefore, the correct answer to the question is **Option C: Contact Inhibition**.