Botany CSS Paper I 2010

FEDERAL PUBLIC SERVICE COMMISSION

COMPETITIVE EXAMINATION FOR

RECRUITMENT TO POSTS IN BS. 17

UNDER THE FEDERAL GOVERNMENT, 2010

BOTANY – PAPER I
TIME ALLOWED: THREE HOURS

PART – I (MCQS): MAXIMUM 30 MINUTES

PART – I (MCQS): MAXIMUM MARKS = 20

PART – II: MAXIMUM MARKS = 80

NOTE: (i) Part – II is to be attempted on the separate Answer Book.

(ii) Attempt ONLY FOUR questions from PART – II. ALL questions carry EQUAL marks.

(iii) All the parts (if any) of each Question must be attempted at one place instead of at different places.

(iv) Candidate must write Q. No. in the Answer Book in accordance with Q. No. in the Q.Paper.

(v) No Page/Space be left blank between the answers. All the blank pages of Answer Book must be crossed.

(vi) Extra attempt of any question or any part of the attempted question will not be considered.

Part – II

Note:Attempt only four questions.All questions carry Equal marks.

Q.2 a) classify different groups of algae based on their habitat and pigmentation. 10
b) Write a note on the economic importance of chlorophyta.10

Q .3 Fungi have great impact on our national economy. Explain their constructive and destructive roles with a special emphasis on agricultural sector.

Q.4 What are lichens? Explain how lichens are not only beneficial for humans but also for the universe?

Q.5 a) Explain the general characteristics of Bryophytes. 10
b) Write a detailed note on mode of reproduction in Marchantia. 10

Q.6 a) Discuss the structure of strobilus and sporangia of Equisetum. 10
b) Explain the major resemblances and differences between Gymnosperms and Pteridophytes. 10

Q.7 Explain the mechanism of pollination, fertilization and development of seed as well as seed dispersal in Angiosperms.

Q.8 Write short notes on any two of the following:
1) Rules of botanical nomenclature
2) Chemotaxonomy and numerical taxonomy
3) Concept of Speciation

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