PUNJAB PUBLIC SERVICE COMMISSION
COMBINED COMPETITIVE EXAMINATION
FOR RECRUITMENT TO THE POSTS OF
PROVINCIAL MANAGEMENT SERVICE, ETC
FOR RECRUITMENT TO THE POSTS OF
PROVINCIAL MANAGEMENT SERVICE, ETC
ZOOLOGY (OPTIONAL) PAPER-II
TIME ALLOWED: 3 HOURS MAXIMUM MARKS: 100
Note: Attempt ONE Question from each Section.
Note: Attempt ONE Question from each Section.
SECTION-A
Q.1: What is Transcription? Explain its detailed account in Prokaryotes. (20)
Q.2: (a) Explain various steps involved during Krebs cycle. (10)
(b) Discuss generalized and specialized functions of various types of Endoplasmic Reticulum. (10)
SECTION-B
Q.3: What happens to food in Intestine? Explain the role of various parts and Secretions. (20)
Q.4: (a) What is Hypophysis? Explain its role in hormonal coordination. (10)
(b) How CO2 is transported in higher animals? (10)
SECTION-C
Q.5: (a) Explain Law of Independent Assortment with an example from plant or animals. (10)
(b) What is Point Mutation? Discuss various types with examples. (10)
Q.6: (a) Prove Experimentally that DNA is Heredity Material. (10)
(b) How sex is determined in various group of animals? Discuss various methods. (10)
SECTION-D
Q.7: (a) Explain salient features of Darwinian hypothesis of Natural Selection. (15)
(b) Write note on concept of Species. (05)
Q.8: What could be the possible mechanisms by which life may have evolved on this earth? Support your answer with experiments. (20)
SECTION-E
Q.9: (a) How Energy Flows in an Ecosystem? (10)
(b) Give brief account of Land Pollution. (10)
Q.10: (a) Explain Food Web by taking example from Terrestrial Ecosystem. (10)
(b) Differentiate between Primary and Secondary productivity with examples. (10)
