The CSS Botany Paper 2026 is an optional paper that evaluates a candidate’s understanding of plant sciences, from cellular and molecular processes to plant ecology and environmental interactions. The paper reflects the scientific depth of botany by covering areas such as plant physiology, genetics, taxonomy, biotechnology, and ecosystem dynamics.
It demands conceptual clarity, accurate diagrams where required, and the ability to link theoretical knowledge with real-world issues like climate change, food security, and biodiversity conservation. Overall, the paper tests not only memory but also analytical thinking and the practical application of botanical principles.
CSS Botany Past Paper 2026
Q2. Explain evidence in support of evolution from conventional and molecular biology.
Q3. Discuss the biological and economic importance of fungi.
Q4. How would you prove that replication of DNA is semiconservative?
Q5. Explain Mendel’s Law of Segregation and Law of Independent Assortment. Is the law of Independent Assortment applicable to codominant genes and the genes present on the same chromosome?
Q6. Explain the structure and reproduction of Spirogyra.
Q7. Explain the molecular structure of the cell membrane.
Q8. Write a short note on any FOUR of the following:
- a. Micro and megasporogenesis in angiosperms
- b. Ecosystem
- c. Plant hormones
- d. Air pollution
- e. Gymnosperms
View the CSS Botany past paper 2026:
