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 regarding which attribute inhibits uncontrolled growth and thus prevents a cell from turning cancerous, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for an attribute that prevents uncontrolled growth in cells, which is crucial in stopping cells from becoming cancerous.

2. **Analyzing the Options**:
- **Option 1: Metastasis**: This refers to the spread of cancer cells from one part of the body to another. Since metastasis involves the proliferation of cancer, it does not inhibit growth; rather, it promotes it. Therefore, this option is incorrect.

- **Option 2: Malignancy**: Malignancy refers to the presence of cancerous cells that grow uncontrollably and can invade other tissues. This term is associated with uncontrolled growth rather than inhibition. Hence, this option is also incorrect.

- **Option 3: Contact Inhibition**: Contact inhibition is a process where cells stop dividing when they come into contact with each other. This mechanism prevents cells from growing uncontrollably and is a key factor in maintaining normal tissue architecture. Therefore, this option is correct as it inhibits uncontrolled growth and prevents cells from becoming cancerous.

- **Option 4: Inhibition**: While this term suggests a general idea of stopping growth, it is too vague and does not specifically refer to a mechanism that prevents cancerous growth. Thus, this option is incorrect.

3. **Conclusion**: After analyzing all the options, the correct answer is **Option 3: Contact Inhibition**. This attribute plays a crucial role in preventing cells from turning cancerous by inhibiting uncontrolled growth.