Identify from the following, a hormone produced by the pituitary gland in both males and femals but functional only in females.

Options

A. Vasopressin
B. Relaxis
C. Prolactin
D. Somatotropic hormone

Explanation

To solve the question of identifying a hormone produced by the pituitary gland that is functional only in females, we can follow these steps:

### Step 1: Understand the Question
We need to identify a hormone that is produced by the pituitary gland in both males and females but has a specific function that is only relevant to females.

### Step 2: Analyze the Options
We have four options to consider:
1. **Vasopressin**
2. **Relaxin**
3. **Prolactin**
4. **Somatotrophic hormone**

### Step 3: Evaluate Each Hormone
- **Vasopressin**: This hormone regulates water balance in the body and functions in both males and females through the kidneys. Therefore, it does not meet the criteria of being functional only in females.

- **Relaxin**: This hormone has different functions in males and females. In females, it helps relax the cervix during childbirth, while in males, it enhances sperm motility. However, it is not produced by the pituitary gland.

- **Prolactin**: This hormone is crucial for milk production after childbirth in females. While it is present in both males and females, its primary function related to lactation is only applicable to females.

- **Somatotrophic hormone**: Also known as growth hormone, it regulates growth in both males and females and is functional in both genders. Thus, it does not meet the criteria.

### Step 4: Conclusion
Based on the analysis, the hormone that is produced by the pituitary gland in both males and females but is functional only in females is **Prolactin**.

### Final Answer
**Prolactin** (Option 3) is the hormone produced by the pituitary gland in both males and females but is functional only in females.

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