Assertion :- Growth hormone, Thyroxine and cortisol hormone are called diabetogenic hormone.
Reason:- When the hypersecretion of thyroxine occurs then produce diabetes mellitus.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion
B. If both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true but reason is false
D. If both assertion and reason are false.

Answer

To solve the question, we need to analyze both the assertion and the reason provided.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that growth hormone, thyroxine, and cortisol are called diabetogenic hormones.
- Diabetogenic hormones are those that can increase blood glucose levels, contributing to the development of diabetes.

2. **Analyzing the Hormones**:
- **Growth Hormone**: It can increase blood glucose levels by promoting gluconeogenesis and reducing glucose uptake in tissues.
- **Cortisol**: This hormone is known to increase blood glucose levels and is indeed classified as a diabetogenic hormone.
- **Thyroxine**: While it plays a role in metabolism, its classification as a diabetogenic hormone is less clear-cut. It can influence glucose metabolism but does not directly cause diabetes.

3. **Understanding the Reason**:
- The reason states that hypersecretion of thyroxine produces diabetes mellitus.
- This statement is misleading. Hypersecretion of thyroxine can lead to various metabolic disorders, but it does not directly cause diabetes mellitus. Instead, it can lead to a condition known as hyperthyroidism, which may have different metabolic effects.

4. **Evaluating the Truth of Assertion and Reason**:
- The assertion is partially true, as cortisol and growth hormone are indeed diabetogenic, but the classification of thyroxine as such is debatable.
- The reason is false because hypersecretion of thyroxine does not directly cause diabetes mellitus.

5. **Conclusion**:
- Since the assertion is true but the reason is false, the correct answer is that the assertion is true and the reason is false.

### Final Answer:
The correct option is that the assertion is true and the reason is false.

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