Which of the following is incorrect match with regard to the hormone and its chemical nature?

Options

A. Thyroxine-lodinated tyrosine
B. Aldosterone-Polypeptide hormone
C. Estrogen-Steroid hormone
D. Thyrotropin-Glycoprotein hormone

Answer

To solve the question regarding which hormone is incorrectly matched with its chemical nature, we will analyze each option provided.

### Step-by-Step Solution:

1. **Identify the Hormones and Their Chemical Nature**:
- We need to look at the hormones listed in the options and their corresponding chemical nature.

2. **Examine Each Option**:
- **Option 1**: Thyroxine is an iodinated tyrosine.
- **Analysis**: Thyroxine (T4) is indeed derived from the amino acid tyrosine and contains iodine. This is a correct match.

- **Option 2**: Aldosterone is a polypeptide hormone.
- **Analysis**: Aldosterone is a mineralocorticoid hormone produced by the adrenal cortex and is classified as a steroid hormone, not a polypeptide. This is an incorrect match.

- **Option 3**: Estrogen is a steroid hormone.
- **Analysis**: Estrogens are indeed steroid hormones produced by the ovaries. This is a correct match.

- **Option 4**: Thyrotropin (TSH) is a glycoprotein hormone.
- **Analysis**: Thyrotropin, also known as thyroid-stimulating hormone (TSH), is a glycoprotein hormone produced by the anterior pituitary gland. This is a correct match.

3. **Conclusion**:
- The only incorrect match is **Option 2**: Aldosterone is a polypeptide hormone. Aldosterone is actually a steroid hormone.

### Final Answer:
The incorrect match with regard to the hormone and its chemical nature is **Option 2: Aldosterone is a polypeptide hormone**.

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