### **Questions:**
1. **Discuss the variations in basic flower/floral structure with examples.** *(4.0 marks)*
2. **Discuss the contrivances of self and cross pollination.** *(4.0 marks)*
3. **Discuss the sex determination mechanism in *Silene latifolia* (*Melandrium album*).** *(4.0 marks)*
4. **Write a note on alternation of generation in plant life cycle.** *(2.0 marks)*
5. **Discuss the pros and cons of self and cross pollination in plants.** *(3.0 marks)*
6. **Write the difference between insect-pollinated and wind-pollinated features of plants.** *(3.0 marks)*
7. **Discuss the barnase and barstar system of male sterility.** *(3.0 marks)*
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