BALOCHISTAN PUBLIC SERVICE COMMISSION
COMPETITIVE EXAMINATION FOR THE POSTS OF SECTION OFFICERS (B-17)
BOTANY
MARKS: 150 JUNE 10, 2003 TIME: 03 HOURS
NOTE:
i) Attempt any Five questions.
ii) Draw Neat and Labelled Diagrams where necessary.
iii) All questions carry equal marks.
Q-1 Explain the structure of a typical Bacterium Cell. Its general characters, reproduction and economic importance.
Q-2 Describe the life cycle of Puccinia. Its economic importance and methods of control.
Q-3 What is the structure and function of Vascular Cambium? Describe secondary growth in a Dicot Stem.
Q-4 Explain Binomial nomenclature. What are different systems of classification? Write down the Engler and Prantl’s System of Classification.
Q-5 What are Chromosomal aberrations? Write an essay on changes in number and structure of Chromosomes.
Q-6 What are the Principles of Genetic Engineering? Write an essay on application of genetics in plant improvement.
Q-7 Explain Photosynthesis and factors affecting photosynthesis. What is the concept of Limiting factors?
Q-8 What is Environmental Pollution? Describe measures of conservation of natural resources.
Q-9 Write an essay on Plants of Medicinal Value and Economic Importance of Balochistan.
Q-10 Write notes on any FOUR of the following:
(i) Lichens.
(ii) Difference between DNA and RNA.
(iii) Plant Hormones.
(iv) Sex linked inheritance in man.
(v) Biochemical nature of Virus.
(vi) Heterospory and its Significance.
The End
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