In DNA fingerprinting which of the following is true ?

Options

A. House keeping to luxury genes are uses as probes
B. Specific metabolic genes are used as probes
C. VNTR is used as probes
D. All of the above

Answer

**Step-by-Step Solution:**

1. **Understanding DNA Fingerprinting**: DNA fingerprinting is a technique used to identify individuals based on their unique DNA profiles. It is often compared to traditional fingerprinting, as both methods rely on unique characteristics.

2. **Identifying the Purpose of DNA Fingerprinting**: The primary purpose of DNA fingerprinting is to identify individuals. This is achieved by analyzing specific regions of DNA that vary greatly among individuals.

3. **Evaluating the Options**: The question presents four options regarding what is true about DNA fingerprinting. We need to evaluate each option carefully.

4. **Analyzing Option A**: The first option states that "housekeeping and luxury genes are used as props." This is incorrect because DNA fingerprinting does not utilize these types of genes as props. Instead, it focuses on specific DNA sequences.

5. **Analyzing Option B**: The second option claims that "specific metabolic genes are used as props." This option is also incorrect. Metabolic genes are not the focus of DNA fingerprinting.

6. **Analyzing Option C**: The third option states that "VNTRs (Variable Number of Tandem Repeats) are used as props." This is correct. VNTRs are specific regions in the DNA that are highly variable among individuals and are used in DNA fingerprinting to differentiate between them.

7. **Analyzing Option D**: The fourth option states "all of the above." Since options A and B are incorrect, this option is also incorrect.

8. **Conclusion**: After evaluating all options, the correct answer is option C, which states that VNTRs are used as props in DNA fingerprinting.

**Final Answer**: The true statement regarding DNA fingerprinting is option C: VNTRs (Variable Number of Tandem Repeats) are used as props.

---