KHYBER PAKHTUNKHWA PUBLIC SERVICE COMMISSION
COMPETITIVE EXAMINATION FOR THE POSTS OF PMS(BPS-17)-2022
ZOOLOGY (PAPER II)
Maximum Marks: 100
Time Allowed: 3 hours
Note: Attempt Five (05) questions in all selecting ONE question from each Part Draw neat and well-labeled diagrams where required
Q No Questions Allocated Marks
PART – A
1 Discuss the structural and functional unit of DNA and how DNA is controlling the characteristics of a cell, an organism, and generations. 20
2 How does a eukaryotic cell get energy from glucose? 20
PART – B
3 How the resting membrane potential of nerves is maintained and action potential is attained. 20
4 Discuss the mechanism of self-excitation of fibers of the sinus node and how it is different from ventrical contraction of the heart. 20
PART – C
5 What is gene mapping and how it is used to measure the distance between genes. 20
6 What are multiple alleles and how these are related to erythroblastosis foetalis. 20
PART – D
7 What is organic evolution? Explain its mechanism by Darwin along with evidence of evolution. 20
8 Do you think that evolution is happening all the time If so then explain it by Hardy Weinberg’s theorem. 20
PART – E
9 Explain osmotic adaptations of organisms in marine water, freshwater, and estuaries. 20
10 Do you think that overpopulation is a root cause of all types of pollution, urbanization, deforestation, and industrialization Explain. 20
**************