Which of the following is incorrect?
I. Gemmules, Gametes, Gonads and Genitalia are connected to asexual reproduction.
II. Bacteria, fungi and lower plants survive during adverse conditions by formation of thick-walled spores.
III. Greek word 'sexus' means Union.
IV. Seedless fruits in Banana are produced through parthenogenesis.
V. Stem cuttings are commonly used in the propagation of rose.

Options

A. only I
B. II and III
C. III and IV
D. IV and V

Answer

To determine which of the statements is incorrect, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement I**: "Gemmules, Gametes, Gonads and Genitalia are connected to asexual reproduction."
- **Analysis**:
- Gemmules are involved in asexual reproduction, but gametes, gonads, and genitalia are associated with sexual reproduction.
- **Conclusion**: This statement is incorrect.

2. **Statement II**: "Bacteria, fungi and lower plants survive during adverse conditions by formation of thick-walled spores."
- **Analysis**:
- It is true that many bacteria, fungi, and lower plants form thick-walled spores to survive harsh conditions.
- **Conclusion**: This statement is correct.

3. **Statement III**: "Greek word 'sexus' means Union."
- **Analysis**:
- The term 'sexus' actually refers to 'sex' or 'gender' in Greek, not 'union'.
- **Conclusion**: This statement is incorrect.

4. **Statement IV**: "Seedless fruits in Banana are produced through parthenogenesis."
- **Analysis**:
- Bananas are indeed seedless and are produced through a process that can be described as parthenogenesis.
- **Conclusion**: This statement is correct.

5. **Statement V**: "Stem cuttings are commonly used in the propagation of rose."
- **Analysis**:
- Stem cuttings are a well-known method for propagating rose plants.
- **Conclusion**: This statement is correct.

### Final Conclusion:
The incorrect statements are I and III. However, since the question asks for a single incorrect statement, the most relevant one is:
- **Answer**: Statement I is incorrect.