VNTR is used in :

Options

A. Protoplast culture
B. DNA finger printing
C. regulation of hormones
D. enhancing photosynthetic genes

Answer

**Step-by-Step Solution:**

1. **Understanding VNTR**: VNTR stands for Variable Number of Tandem Repeats. These are short sequences of DNA that are repeated a variable number of times in different individuals.

2. **Characteristics of VNTRs**: The DNA sequences in individuals are generally similar, but VNTRs are the regions where variations occur. This makes VNTRs unique for each individual, which is crucial for identification purposes.

3. **Applications of VNTRs**: One of the major applications of VNTRs is in the field of forensic science and genetics, particularly in DNA fingerprinting. DNA fingerprinting utilizes these variations in VNTRs to differentiate between individuals.

4. **Evaluating the Options**:
- **Protoplast culture**: This refers to the culture of plant cells without their cell walls and is not related to VNTRs.
- **DNA fingerprinting**: This is directly related to VNTRs as it uses the variations in these sequences to create a unique profile for individuals.
- **Regulation of hormones**: This is a biological process that does not involve VNTRs.
- **Enhancing photosynthetic genes**: This relates to plant genetics and does not pertain to VNTRs.

5. **Conclusion**: Based on the understanding of VNTRs and their applications, the correct answer to the question is that VNTR is used in **DNA fingerprinting**.

**Final Answer**: VNTR is used in **DNA fingerprinting**.

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