Find the wrong match.

Options

A. Benign tumor-Cancerous
B. Carcinoma in situ-Not yet metastasised
C. Malignant tumour-Neoplastic
D. Protooncogene-Normal, unmutated gene

Answer

To find the wrong match from the options provided, we will analyze each option step by step.

### Step 1: Analyze the first option - Benign tumor that is cancerous
- **Definition of Benign Tumor**: A benign tumor is a non-cancerous growth. It does not invade nearby tissues or spread to other parts of the body.
- **Conclusion**: Since benign tumors are non-cancerous, this statement is incorrect. Therefore, this is a wrong match.

### Step 2: Analyze the second option - Carcinoma in situ not yet metastasized
- **Definition of Carcinoma in situ**: This term refers to cancer that is localized and has not spread (metastasized) to surrounding tissues.
- **Conclusion**: This statement is correct as carcinoma in situ is indeed not yet metastasized. Thus, this is a true match.

### Step 3: Analyze the third option - Malignant tumor that is neoplastic
- **Definition of Malignant Tumor**: A malignant tumor is cancerous and has the potential to invade nearby tissues and spread to other parts of the body.
- **Definition of Neoplastic**: Neoplastic refers to any new and abnormal growth of tissue, which includes both benign and malignant tumors.
- **Conclusion**: Since malignant tumors are a type of neoplasm, this statement is also correct. Thus, this is a true match.

### Step 4: Analyze the fourth option - Proto-oncogenes normal unmutated genes
- **Definition of Proto-oncogenes**: Proto-oncogenes are normal genes that can become oncogenes due to mutations. They are involved in cell growth and division.
- **Conclusion**: The statement is correct as proto-oncogenes are indeed normal and unmutated genes. Thus, this is a true match.

### Final Conclusion
After analyzing all the options, the only wrong match is:
- **Benign tumor that is cancerous**: This is false because benign tumors are non-cancerous.

### Summary of the Wrong Match
- The wrong match is **Benign tumor that is cancerous**.