CSS Botany Past Paper 2012
Paper-I
PART-2(Subjective) 80 Marks
Attempt ONLY FOUR Questions from PART-II. (20×4)
PART-II
Q.2 What are lichens? Give a detailed explanation of their importance.
Q.3 Differentiate between simple and complex tissues.
Q.4 Give the classification and economic importance of the main groups of Algae.
Q.5 What is Numerical Taxonomy? Explain cladistic analysis.
Q.6 What is fertilization? Explain the different modes of seed dispersal in angiosperms.
Q.7 Who proposed binomial nomenclature? Give its details. Why is Latin used in nomenclature?
Q.8 Discuss the relationship between Pteridophytes and Gymnosperms. Highlight the advanced characters of Pteridophytes with examples.
Paper-II
PART-2(Subjective) 80 Marks
Attempt ONLY FOUR Questions from PART-II. (20×4)
PART-II
Q. 2 Explain evolution with reference to Darwinism.
Q. 3 Give a detailed account of chromosomal aberrations. Support your answer with diagrams.
Q. 4 What is salinity and water logging? Discuss with reference to its causes in Pakistan.
Q. 5 Which cell division occurs in reproductive cells? How does a diploid cell produce four haploid daughter cells? Explain.
Q. 6 Describe the following:
(a) Pyramids
(b) Food chain
(c) Ecological energetics
(d) Concepts of ecosystem
Q. 7 Write short notes on any TWO of the following:
- Genetic code
- Polyploidy
- Mutation