Among the given names of hormones, how many of them show a physiological response by changing the gene expression after binding with DNA inside the target cells ?
Oxytocin, Prolactin, Thyroxine, Calcitonin, Vasopressin , Estrogen, FSH, Cortisol, Testosterone, Adrenaline, Aldosterone

Options

A. Three
B. Five
C. Seven
D. Nine

Answer

To determine how many of the given hormones show a physiological response by changing gene expression after binding with DNA inside target cells, we need to classify the hormones into two categories: lipid-soluble hormones and water-soluble hormones.

### Step-by-Step Solution:

1. **Identify the Types of Hormones**:
- Hormones can be classified into two main types: lipid-soluble hormones and water-soluble hormones. Lipid-soluble hormones can easily pass through cell membranes and bind to intracellular receptors, while water-soluble hormones typically bind to receptors on the cell surface.

2. **List the Given Hormones**:
- The hormones provided in the question are:
- Oxytocin
- Prolactin
- Thyroxine
- Calcitonin
- Vasopressin
- Estrogen
- FSH (Follicle Stimulating Hormone)
- Cortisol
- Testosterone
- Adrenaline
- Aldosterone

3. **Classify Each Hormone**:
- **Lipid-Soluble Hormones** (can change gene expression):
- Thyroxine
- Estrogen
- Cortisol
- Testosterone
- Aldosterone
- **Water-Soluble Hormones** (do not change gene expression):
- Oxytocin
- Prolactin
- Calcitonin
- Vasopressin
- FSH
- Adrenaline

4. **Count the Lipid-Soluble Hormones**:
- From the classification, the lipid-soluble hormones that can change gene expression are:
- Thyroxine
- Estrogen
- Cortisol
- Testosterone
- Aldosterone
- This gives us a total of **5 hormones** that can change gene expression.

5. **Conclusion**:
- The answer to the question is that **5 hormones** show a physiological response by changing gene expression after binding with DNA inside the target cells.

### Final Answer:
**5**