Component of seminal vesicles that provides a forensic test for rape is

Options

A. Phosphorycholine
B. Prostaglandin
C. Fructose
D. Citric acid

Answer

To solve the question about the component of seminal vesicles that provides a forensic test for rape, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: We need to identify which component of the seminal vesicles can be used as a forensic marker to confirm sexual intercourse in cases of rape.

2. **Identify Components of Seminal Vesicles**: The seminal vesicles produce several substances, including:
- Phosphorylcholine
- Prostaglandins
- Fructose
- Citric acid

3. **Research Each Component**:
- **Phosphorylcholine**: While it is present in seminal fluid, it is not specifically used as a forensic marker.
- **Prostaglandins**: These are hormones that play a role in various physiological functions but are not a specific marker for confirming sexual intercourse.
- **Fructose**: This sugar is produced by the seminal vesicles and provides energy to sperm. Importantly, fructose is not found in significant amounts in the female body, making it a reliable marker.
- **Citric Acid**: This component is involved in metabolic processes but does not serve as a forensic marker.

4. **Determine the Forensic Relevance**: Among the components listed, fructose is unique to the seminal vesicles and can be detected in the female genital tract after intercourse. Its presence is used in forensic tests to confirm sexual activity.

5. **Select the Correct Answer**: Based on the analysis, the component of seminal vesicles that provides a forensic test for rape is **C, fructose**.

### Final Answer:
The answer is **C, fructose**.

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