Primary sex organs differ from the secondary sex organs in all the following except

Options

A. They produce gamets
B. They secrete sex hormones
C. They are concerned with the conduction of gametes
D. Testes in male and ovaries in female are the examples of primary sex organs

Answer

To solve the question regarding the differences between primary and secondary sex organs, we need to analyze each option provided and determine which one does not differentiate the two categories.

### Step-by-Step Solution:

1. **Understand Primary Sex Organs**:
- Primary sex organs are the organs responsible for the production of gametes (sperm in males and ova in females).
- They also secrete sex hormones that are crucial for reproductive functions.
- Examples include testes in males and ovaries in females.

2. **Understand Secondary Sex Organs**:
- Secondary sex organs are involved in the conduction or transportation of gametes.
- They do not produce gametes or hormones but play a role in the reproductive process.

3. **Analyze Each Option**:
- **Option A**: "They produce gametes."
- This is a characteristic of primary sex organs.
- **Option B**: "They secrete sex hormones."
- This is also a characteristic of primary sex organs.
- **Option C**: "They are concerned with the conduction of gametes."
- This is a function of secondary sex organs, not primary.
- **Option D**: "Testes in males and ovaries in females are examples of primary sex organs."
- This is true and describes primary sex organs.

4. **Identify the Exception**:
- The question asks for the option that does not differentiate primary from secondary sex organs.
- Since option C refers to the conduction of gametes, which is a function of secondary sex organs, it is the correct answer.

### Conclusion:
The correct answer is **Option C**: "They are concerned with the conduction of gametes."

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