Select the mismatched pair from the following.

Options

A. Insulin-Gluconeogenesis
B. Glucagon-Glycogenolysis
C. Oxytocin-Contraction of uterine muscles
D. Prolactin-Milk production in mammary glands.

Explanation

To solve the question of identifying the mismatched pair from the given options regarding hormones and their functions, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Hormones and Their Functions**:
- **Insulin**: This hormone is responsible for converting glucose into glycogen. This process is known as **glycogenesis**.
- **Glucagon**: This hormone works in the opposite way; it converts glycogen back into glucose. This process is known as **glycogenolysis**.
- **Oxytocin**: This hormone is involved in the contraction of uterine muscles during childbirth. It is often referred to as the "birth hormone".
- **Prolactin**: This hormone is responsible for milk production in mammary glands.

2. **Analyze Each Option**:
- **Option 1**: Insulin - gluconeogenesis. This is incorrect because insulin is involved in glycogenesis, not gluconeogenesis.
- **Option 2**: Glucagon - glyconeogenesis. This is incorrect because glucagon is involved in glycogenolysis, not glyconeogenesis.
- **Option 3**: Oxytocin - contraction of uterine muscles. This is correct.
- **Option 4**: Prolactin - milk production in mammary glands. This is also correct.

3. **Identify the Mismatched Pair**:
- From the analysis, we see that the first option (Insulin - gluconeogenesis) is incorrect. Insulin is not related to gluconeogenesis; it is related to glycogenesis.

4. **Conclusion**:
- The mismatched pair is **Option 1: Insulin - gluconeogenesis**.

### Final Answer:
The mismatched pair is **Option 1: Insulin - gluconeogenesis**.

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