Bontay - Faisalabad Re-Exam 2013
 

[CENTER][CENTER][SIZE=3][B][COLOR=black][FONT=&quot]Federal Public Service Commission
Re-Examination of Competitive Examination[/FONT][/COLOR][/B][/SIZE]

[SIZE=3][B][COLOR=black][FONT=&quot]For Recruitment to Posts in BS-17 Under [/FONT][/COLOR][/B]
[B][COLOR=black][FONT=&quot]The[/FONT][/COLOR][/B][B][COLOR=black][FONT=&quot] Federal Government, 2013[/FONT][/COLOR][/B]
[/SIZE]
[CENTER][CENTER][SIZE=3][B][U][COLOR=black][FONT=&quot]Botany
[/FONT][/COLOR][/U][/B][/SIZE]
[SIZE=3][B][U][COLOR=black][FONT=&quot]Paper-I [/FONT][/COLOR][/U][/B][/SIZE][B][COLOR=black][FONT=&quot]


[U]TIME ALLOWED: 2 HOURS & 30 MINUTES [/U][/FONT][/COLOR][/B][B][U][COLOR=white][FONT=&quot]..............[/FONT][/COLOR][/U][/B][B][U][COLOR=black][FONT=&quot]MAXIMUM MARKS:80[/FONT][/COLOR][/U][/B][/CENTER]
[/CENTER]

[LEFT][B][COLOR=black][FONT=&quot]NOTE:[/FONT][/COLOR][/B]
[COLOR=black][FONT=&quot] [B](iii) Attempt Only FOUR question from Part II. All questions carry EQUAL marks.[/B][/FONT][/COLOR]
[COLOR=black][FONT=&quot] [B](iv) Extra attempt of any question or any part of the attempted question will not be considered[/B][/FONT][/COLOR].
[/LEFT]

[CENTER][CENTER][B][COLOR=black][FONT=&quot]Part II[/FONT][/COLOR][/B]

[/CENTER]
[/CENTER]

[LEFT][B]Q.2.[/B] What is CAMBIUM? Describe its various types and structures. [B](20)[/B]
[/LEFT]
[LEFT][B]
Q. 3[/B]. Write a detailed account on merits and demerits of BENTHAM and HOOKER’s System of classification. [B](20)[/B] [/LEFT]
[LEFT]
[B]Q.4.[/B] Describe Histogen theory and Tunica-Corpus theory of MERISTEMATIC Tissue. [B](20)

[/B][/LEFT]
[LEFT][B]Q.5. [/B]Decribe general characteristics, important genera and economic importance of family FABACEAE. [B](20)[/B]

[/LEFT]
[LEFT][B]Q.6.[/B] How CHARA reproduce vegetatively and Sexually? Discuss in detail the structure of male and female reproductive bodies of CHARA. [B](20)[/B]

[/LEFT]
[LEFT][B]Q.7.[/B] Explain in detail the life cycle of PUCCINIA. What are various methods to control the disease caused by Puccinia? [B](20)[/B]

[/LEFT]
[LEFT][B]Q.8[/B] Write NOTES on any TWO of the following: [B](20)[/B] [/LEFT][INDENT][LEFT][FONT=Calibri][SIZE=2]a) [/SIZE][/FONT][SIZE=2]Role of FUNGI in food industry.[/SIZE][/LEFT]
[LEFT][FONT=Calibri][SIZE=2]b) [/SIZE][/FONT][SIZE=2]Structure of Female GAMETOPHYTE of ANGIOSPERMS.[/SIZE][/LEFT]
[LEFT][FONT=Calibri][SIZE=2]c) [/SIZE][/FONT][SIZE=2]Development of EMBRYO.[/SIZE][/LEFT]
[/INDENT][CENTER][CENTER]

[B][COLOR=black][FONT=&quot]
[/FONT][/COLOR][/B][/CENTER]
[/CENTER]
[/CENTER]
[/CENTER]

[CENTER][SIZE=4][B]PAPER-II[/B][/SIZE]
[/CENTER]
[B]Q.No.2[/B]. Describe in detail the structure, physiology and action of phytochromes in plants. Also classify the plants with respect to their responses to daylight. [B](20)[/B]

[B]Q.No.3.[/B] What is photophosphorylation? Write a detailed note on light reaction at PSI and PSII.[B](20)[/B]

[B]Q.No.4.[/B] The plants as solitary component of nature are always subject to environmental perturbations. Describe in detail how do climatic and edaphic factors influence plant life. [B](20)[/B]

[B]Q.No.5.[/B] Salinity and water logging reduced plant productivity drastically. Give in detail their causes of occurrence and how saline and waterlogged soils can be reclaimed.[B](20)[/B]

[B]Q.No.6.[/B] Write note on the structure and function of nucleus, chloroplast, mitochondria and peroxisomes in a plant cell. [B](20)[/B]

[B]Q. No. 7.[/B] Give a detailed account of chromosomal aberrations. How they are important to evolutionary tendencies in plant.

[B]Q.No.8.[/B] Define evolution. Write detailed notes on the evolutionary theories put forward by Darwin and Lamarck. [B](20)[/B]