SINDH PUBLIC SERVICE COMMISSION, HYDERABAD.
Combined Competitive Examination, 2021
BOTANY
Friday the 25th February, 2022.
Time: 02:30 pm to 05: 30 pm Maximum marks. 100
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Note: Attempt any Five questions. All questions carry equal marks.
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Question No.
01 Describe the plant microbe of interaction? And describe how bacteria are harmful and beneficial, explain with suitable examples?
02 Discuss in detailed discovery of Virus and define various steps during replication of viruses?
03 Discuss the role of Algae in sewage disposal and waste land reclamation? What’s the role of Algae in water pollution?
04 Describe the growth regulator? Explain the mechanism of action of abscisic acid, gibberellin, cytokinin and ethylene?
05 Discuss the role of fungi in food industry? Explain the commercial importance of Algae and bryophyte and historical background of the algae?
06 Describe the form and structure of plants growing in deserts. What peculiar features have helped them to succeed in such situations?
07 What do you understand by transcription and translocation of the genetic information contained in DNA? Describe the mechanism involved in these processes?
08 What are the polyamines? Give their biological significance and metabolism in plants?
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