Zoology Paper 2003
 

[CENTER][CENTER][B]FEDERAL PUBLIC SERVICE COMMISSION[/B][/CENTER]
[/CENTER]
[CENTER][CENTER][B]COMPETITIVE EXAMINATION FOR RECRUITMENT TO POSTS[/B][/CENTER]
[/CENTER]
[CENTER][CENTER][B]IN BPS – 17 UNDER THE FEDERAL GOVERNMENT, 2003.[/B][/CENTER]
[/CENTER]

[CENTER][CENTER][B][U]ZOOLOGY, PAPER - I[/U][/B][/CENTER]
[/CENTER]

[CENTER][CENTER][B][U]TIME ALLOWED: THREE HOURS MAXIMUM MARKS:100[/U][/B][/CENTER]
[/CENTER]

[B]NOTE: Attempt FIVE questions in all, including question No. 7 which is COMPULSORY. Select at least TWO QUESTIONS from each of the SECTIONS. All questions carry EQUAL marks.[/B]

[CENTER][U][B]SECTION ‘I’[/B][/U]
[/CENTER]

1. (a) Discuss the phenomenon of Autogamy with special reference to Paramecium. (7)
(b) Give a brief over view of Parasitic Adaptations in Platyhhelminthes. (7)
(c) “Sponges have a Diploblastic organization.” Discuss the statement. (6)

2. (a) Define Polymorphism and explain with reference to Coelentrata. (8)
(b) Describe Respiratory System in insects. (7)
(c) “The skeletal support though gives protection, yet makes Molluscas inefficient. Comment on the statemtent. (5)

3. (a) “The Annelids are Metamerically Segmented organisms.” Discuss the statement. (10)
(b) Discuss the Water Vascular system in Echinoderms. (10)

[CENTER][CENTER][B][U]SECTION ‘II’[/U][/B][/CENTER]
[/CENTER]
4. (a) Discuss Retrogressive Metamorphosis with reference to Ascidian. (10)
(b) “Amphioxus is an ideal Chordate.” Comment. (10)

5. (a) Discuss the evolutionary changes in the structure of heart indifferent Chordate groups. (10)
(b) Write a brief essay on Migration in birds. (10)

6. (a) Give an account of development of chick upto the development of three Germinal Layers. (12)
(b) Name the ten Cranial Nerves found in Scoliodon. (8)


[CENTER][CENTER][B][U]COMPULSORY QUESTION[/U][/B][/CENTER]
[/CENTER]
[B] 7. (A) Write only the correct answer in the Answer Book. Do not reproduce the questions.[/B]

(1) Contractile vacuole in Protozoa is basically concerned with:
(a) Excretion
(b) Osmoregulation
(c) Respiration
(d) None of these

(2) Gammules are produced in:
(a) Annelida
(b) Arthropoda
(c) Porifera
(d) None of these

(3) Scales in Reptiles originate from:
(a) Ectoderm
(b) Mesoderm
(c) Endoderm
(d) None of these

(4) The Chordates are dissected from:
(a) Dorsal side
(b) Ventral side
(c) Lateral side
(d) Both (a) and (b)
(e) None of these

(5) Open type of blood vascular system is present in:
(a) Echinoderms
(b) Chordates
(c) Molluses
(d) None of these

(6) Frog has the following number of Neck Vertebrae:
(a) Seven
(b) Nine
(c) Four
(d) Zero
(e) None of these

(7) Insects have not adapted to the environment:
(a) Aquatic
(b) Fresh water
(c) Marine
(d) None of these

(8) The true jaw is not present in:
(a) Elasmobranchs
(b) Boney Fish
(c) Agnatha
(d) None of these

(9) Sea Horse is included in:
(a) Pisces
(b) Mammals
(c) Insects
(d) Mollusca
(e) None of these

(10) A house fly has the following number of legs:
(a) Four
(b) Eight
(c) Six
(d) None of these

[B] (B) Check which of the following statements are true or false. On your answer sheets just write the question number and T or F.[/B]

(11) Some sponges are found in freshwater also.
(12) Choanocysts are found in Coelentrates.
(13) Coral reefs are present in the sandy coasts of Karachi.
(14) All the internal body cavities are not Coelome.
(15) Mouth parts in Arthropodes are modified appendages.
(16) The appearances of different stages in the embryonic development of a mammal is called as Metamorphosis.
(17) The major part of the Chordate body is Mesodermal in origin.
(18) The Echinoderms and Chordates are Enterocoelic.
(19) Girraffe and goat are similar in having seven neck vertebrae.
(20) The mammals are characterized by having Mammary glands.

[CENTER][CENTER][B]FEDERAL PUBLIC SERVICE COMMISSION[/B][/CENTER][/CENTER]
[CENTER][CENTER][B]COMPETITIVE EXAMINATION FOR RECRUITMENT TO POSTS[/B][/CENTER][/CENTER]
[CENTER][CENTER][B]IN BPS – 17 UNDER THE FEDERAL GOVERNMENT, 2003.[/B][/CENTER][/CENTER]
[CENTER][CENTER][/CENTER][/CENTER]
[CENTER][CENTER][B][U]ZOOLOGY, PAPER - II[/U][/B][/CENTER][/CENTER]
[CENTER][CENTER][B][U] [/U][/B][/CENTER][/CENTER]
[CENTER][CENTER][B][U]TIME ALLOWED: THREE HOURS MAXIMUM MARKS:100[/U][/B][/CENTER][/CENTER]
[CENTER][CENTER][B][U] [/U][/B][/CENTER][/CENTER]
[B]NOTE: Attempt FIVE questions in all, including question No. 8 which is COMPULSORY. All questions carry EQUAL marks.[/B]

1. (a) Draw neat diagram representing important stages of meiosis in an organism having the diploid chromosomal number of 4. (12)
(b) Define Excretion and briefly discuss the main excretory products in animals. (8)

2. (a) Define and explain Generic Linkage. What are the cytogical bases of linkage? (8)
(b) How will you explain the production of long neck in Giraffe under Darwinian Theory. (12)

3. (a) Give a detailed account of Phosphorous cycle. (10)
(b) What do you understand from energy subsidy? (5)
(c) Define hormones. How do these differ from enzymes? (5)

4. (a) Discuss the mechanism of transport of oxygen from lungs to the tissues. (10)
(b) Write a brief note on Paracentric Inversion. (10)

5. (a) Give a brief account of Orthogenesis. (8)
(b) Discuss the basic structure and chemical composition of Mitochondrion. (12)

6. (a) Define pollution. Discuss air pollution with reference to Pakistan. (8)
(b) Define and explain Epistasis. How does it differ from Genetic dominance? (12)

7. Write short notes on the following:
(a) Golgi Complex
(b) Global warming
(c) Possible first living organism
(d) Linkage



[CENTER][CENTER][B][U]COMPULSORY QUESTION[/U][/B]

[B][/B][/CENTER][/CENTER]
8. Write only the correct answer in the Answer Book. Do not reproduce the questions.


(1) The main division of the chromosomes occurs in:
(a) Prophase
(b) Metaphase
(c) Anaphase
(d) Jelophase
(e) None of these

(2) The protein synthesis occurs in:
(a) Mitochondria
(b) Endoplasmic reticulum
(c) Ribosomes
(d) Acrosome
(e) None of these

(3) Blood antigens are present in:
(a) Blood serum
(b) RBC’s
(c) WBC’s
(d) Platelets
(e) None of these

(4) Sex linked genes are the genes located on:
(a) X-chromosome only
(b) Y-chromosome only
(c) Both X and Y-chromosomes
(d) X or Y-chromosomes
(e) None of these

(5) Transcription is the phenomenon associated with:
(a) Synthesis of new DNA
(b) Formation of mRNA and DNA
(c) Formation of tRNA
(d) None of these

(6) Segregation of alleles of a gene occurs in:
(a) Diploid individual
(b) Homozygous individual
(c) Heterozygous individual
(d) All of the above
(e) None of these

(7) Sodium-Potassium pump is located in:
(a) Liver
(b) Heart Cell
(c) Nerve cell
(d) All of the above
(e) None of these

(8) Pepsin is an enzyme responsible for breaking:
(a) Proteins
(b) Lipids
(c) Fats
(d) None of these

(9) Pace maker is located in:
(a) Liver
(b) Brain
(c) Heart
(d) Muscle
(e) None of these

(10) Follicle stimulating hormones are produced in:
(a) Pituitary
(b) Ovaries
(c) Thyroid
(d) Kidney
(e) None of these

(11) Genetic dominance is strongly associated with:
(a) Personality dominance
(b) Adaptive value
(c) Population distribution
(d) None of these

(12) Crossing over is the physical exchange between chromosomes.
(a) Homologous
(b) Non-Homologous
(c) Both (a) and (b)
(d) None of these

(13) XXY individual in man is phonotypically a
(a) Male
(b) Female
(c) Inter sex
(d) None of these

(14) Amino acids are the organic compound behaving like:
(a) Acid
(b) Base
(c) Both (a) and (b)
(d) None of these

(15) Which of these can be the first living organism on the earth:
(a) Protozoan
(b) Algae
(c) Virus
(d) None of these

(16) Ontogeny represents the history of an organism.
(a) Revolutionary
(b) Embryonic
(c) Both (a) and (b)
(d) None of these

(17) Nuclear membrane has a structure similar to:
(a) Cell membrane
(b) Mitochondrion
(c) Endoplasmic reticulum
(d) All of these

(18) Osmosis is the movement of solutes through a membrane.
(a) Permeable
(b) Semi-permeable
(c) Both (a) and (b)
(d) None of these

(19) Sickle Cell Anemia is the condition where the RBS’s deflate.
(a) Under Oxygen
(b) Absence of Oxygen
(c) Both (a) and (b)
(d) None of these

(20) Pond is an example of ecosystem:
(a) Complete
(b) Incomplete
(c) Almost complete
(d) None of these

COMPULSORY QUESTION
7. (A) Write only the correct answer in the Answer Book. Do not reproduce the questions.

(1) Contractile vacuole in Protozoa is basically concerned with:
(b) Osmoregulation

(2) Gammules are produced in:
(c) Porifera

(3) Scales in Reptiles originate from:
(a) Ectoderm
(b) Mesoderm
(c) Endoderm
(d) None of these

(4) The Chordates are dissected from:
(b) Ventral side

(5) Open type of blood vascular system is present in:
(c) Molluses

(6) Frog has the following number of Neck Vertebrae:
(d) Zero


(7) Insects have not adapted to the environment:
(a) Aquatic

(8) The true jaw is not present in:
(c) Agnatha

(9) Sea Horse is included in:
(a) Pisces

(10) A house fly has the following number of legs:
(c) Six

(B) Check which of the following statements are true or false. On your answer sheets just write the question number and T or F.

(11) Some sponges are found in freshwater also. F
(12) Choanocysts are found in Coelentrates. F
(13) Coral reefs are present in the sandy coasts of Karachi. F
(14) All the internal body cavities are not Coelome. T
(15) Mouth parts in Arthropodes are modified appendages. T
(16) The appearances of different stages in the embryonic development of a mammal is called as Metamorphosis. F
(17) The major part of the Chordate body is Mesodermal in origin. T
(18) The Echinoderms and Chordates are Enterocoelic.
(19) Girraffe and goat are similar in having seven neck vertebrae. T
(20) The mammals are characterized by having Mammary glands. T

COMPULSORY QUESTION zoology paper 2003 II


8. Write only the correct answer in the Answer Book. Do not reproduce the questions.


(1) The main division of the chromosomes occurs in:
(c) Anaphase

(2) The protein synthesis occurs in:
(c) Ribosomes

(3) Blood antigens are present in:
(b) RBC’s

(4) Sex linked genes are the genes located on:
(a) X-chromosome only

(5) Transcription is the phenomenon associated with:
(d) None of these

(6) Segregation of alleles of a gene occurs in:
(d) All of the above

(7) Sodium-Potassium pump is located in:
(c) Nerve cell

(8) Pepsin is an enzyme responsible for breaking:
(a) Proteins

(9) Pace maker is located in:
(c) Heart

(10) Follicle stimulating hormones are produced in:
(a) Pituitary

(11) Genetic dominance is strongly associated with:
(c) Population distribution

(12) Crossing over is the physical exchange between chromosomes.
(a) Homologous

(13)
(a) Male
(b) Female
(c) Inter sex
(d) None of these

(14) Amino acids are the organic compound behaving like:
(a) Acid
(b) Base
(c) Both (a) and (b)
(d) None of these

(15) Which of these can be the first living organism on the earth:
(d) None of these

(16) Ontogeny represents the history of an organism.
(b) Embryonic

(17) Nuclear membrane has a structure similar to:
(d) All of these

(18) Osmosis is the movement of solutes through a membrane.
(b) Semi-permeable

(19) Sickle Cell Anemia is the condition where the RBS’s deflate.
(c) Both (a) and (b)

(20) Pond is an example of ecosystem:
(a) Complete


please correct me where ever i have made mistakes__________________

Paper I
(3) Scales in Reptiles originate from:
(a) Ectoderm

Paper II
(14) Amino acids are the organic compound behaving like:
(c) Both (a) and (b)--- perhaps

amino acid behaving like acid and base both.it's confirm