Select the odd one with respect to the chemical nature of a hormone ?

Options

A. Peptide and polypeptide
B. Steroid and iodothyronine
C. Steroids and amino acid derivative
D. Nucleic and derivatives

Answer

To solve the question of identifying the odd one out with respect to the chemical nature of hormones, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understanding Hormones**:
- Hormones are chemical messengers produced by endocrine glands and are crucial for various physiological functions in the body.

2. **Identify the Types of Hormones**:
- Hormones can be classified based on their chemical nature into several categories, including peptide hormones, steroid hormones, amino acid derivatives, and nucleic acid derivatives.

3. **Analyzing Each Option**:
- **Option 1: Peptide and Polypeptide Hormones**:
- Examples include insulin, glucagon, and oxytocin. These hormones are made up of amino acids and are classified under peptide hormones.

- **Option 2: Steroid and Iodothyronine Hormones**:
- Steroid hormones include cortisol and testosterone, while iodothyronines refer to thyroid hormones such as T3 and T4. Both of these are well-recognized classes of hormones.

- **Option 3: Steroids**:
- This option refers to hormones like cortisol, testosterone, and estradiol, which are indeed steroid hormones.

- **Option 4: Nucleic Acid Derivatives**:
- This option refers to hormones derived from nucleic acids. However, there are no known hormones that are classified as nucleic acid derivatives. This makes it distinct from the other options.

4. **Conclusion**:
- Upon analyzing the options, it is clear that "nucleic acid derivatives" is the odd one out because there are no hormones that fall under this category, unlike the other three options which represent recognized classes of hormones.

### Final Answer:
The correct option is **Option 4: Nucleic Acid Derivatives**.

---