BALOCHISTAN PUBLIC SERVICE COMMISSION
Samungli Road, Quetta Cantt.
COMBINED COMPETITIVE EXAMINATION FOR THE POSTS OF BCS (EB) OFFICERS / SECTION OFFICERS B-17 IN THE S&GAD, GOVT. OF BALOCHISTAN
BOTANY
Time Allowed:03 July 22, 2010 (02:30 PM) Total Marks:150
Note: Attempt any Five questions. All questions carry equal marks.
Q-1 Describe the structure and modes of nutrition in Bacteria, also mention their importance in fertility of soil.
Q-2 What is Isomorphic alternation of Generation? Explain asexual reproduction in Cladophora.
Q-3 Differentiate between Rust and Smut. What disease they cause, explain the control methods.
Q-4 What is the difference between Vascular and Non-Vascular Plants? Explain land adaptive characters of Non-Vascular Plants.
Q-5 Describe the structure of a Typical Plant Cell. Discuss in detail the structure and function of Chloroplast.
Q-6 Define Photosynthesis and discuss the environmental factors which influence the rate of Photosynthesis.
Q-7 How did the phenomenon of transformation support the hypothesis that DNA is the hereditary material?
Q-8 Pollution is a world wide serious problem, can you explain major causes of pollution in our country.
Q-9 Write short explanatory notes on any two of the following;
(i) Structure of male and female cone of Pinus.
(ii) Economic importance of family Rosaceae.
(iii) Plant Hormones.
(iv) Rh factor and its significance in pregnancy.
Good Luck
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