Inactive gene that can cause cancer is called ________

Options

A. Transposon
B. Proto-oncogene
C. Tumour promoter gene
D. Tumour suppressor gene

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term that describes an inactive gene that can potentially cause cancer.

2. **Analyzing the Options**:
- **Option 1: Transposons**: These are DNA sequences that can move within the genome but are not specifically related to cancer causation. Therefore, this option is incorrect.

- **Option 2: Proto-Oncogene**: This is a normal gene that, when mutated or altered, can become an oncogene, which is associated with cancer development. This option is correct as it describes an inactive gene that can lead to cancer upon mutation.

- **Option 3: Tumor Promoter Gene**: This type of gene promotes cell growth and division but does not refer to an inactive gene. Thus, this option is incorrect.

- **Option 4: Tumor Suppressor Gene**: These genes help regulate cell growth and prevent tumor formation. They do not represent inactive genes that cause cancer. Therefore, this option is also incorrect.

3. **Conclusion**: After analyzing all the options, the correct answer to the question is **Proto-Oncogene**.

**Final Answer**: Inactive gene that can cause cancer is called **Proto-Oncogene**.

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