Zoology Papers 2005

[prissygirl]

FEDERAL PUBLIC SERVICE COMMISSION

COMPETITIVE EXAMINATION FOR RECRUITMENT TO POSTS

IN BPS – 17 UNDER THE FEDERAL GOVERNMENT, 2005.

ZOOLOGY, PAPER - I

TIME ALLOWED: THREE HOURS MAXIMUM MARKS:100

NOTE: Attempt FIVE questions in all, including question No. 7 which is COMPULSORY. Select at least TWO QUESTIONS from each of the SECTIONS ‘I’ AND ‘II’. All questions carry EQUAL marks.

SECTION ‘I’

1. a) Write a brief account on conjugation in protozoa.
b) Porifera is a group falling at just above the colonial level of organization,comments.
c) "Corals are distributed over a wide range,yet coral reefs are present in selected areas".Discuss.

2. a) Parasitism leads to the development of some characters and withdrawl of some other characters. discuss the statement with reference to platyhelminthes.
b) Write a brief account of shellin mollusca.
c) water vascilar system is the life line in Echinodermata.Comment the statement:

3. write notes on the following:
a) Metameric segmentation
b) Respiration in Arthopodes
c) Psuedocoelom
d) Enterocoelomates

SECTION 'II'

4. a) Discuss retrogressive metamorphosis with reference to Ascidians.
b) "Amphioxus is an ideal chordate".Discuss the statement.

5. a) Skeleton in petromyzon is at very initial stage of development. Justify the statement.
b) Heat gradually evolved into a more efficient pumping organ in different chordate groups." Explain the statement.

6. a) Write an essay on migration in birds, with special reference to Pakistan.
b) Discuss the different type of eggs found in different chordate groups.

Compulsory Question

7. Write only the correct answer in the answer book.Donot reproduce the question.

1. Coelom is the body cavity originating from
a) ectoderm
b) mesoderm
c) endoderm
d) none of these

2. Cytopharynx is the structure present in
a) Amoeba
b) paramecium
c) Euglena
d)foraminifers
e) none of these

3. Gemmules sre the reproductive structures produced in
a) sponges
b) Annelids
c)Arthropods
d)coelentrates

4. Comb plates are very specific structures of
a) coelentrates
b) Arthropoda
c)ctenophora
d) none of these

5. nerve net is present in coelentrates at
a) in endodermis
b) below upper epidermis
c)in mesoglea
d) not present in coelentrates

6. Circulatory system in insects is
a) Closed type
b) open type
c)lymphic type
d) All of these

7. silk is produced by silkworm
a) larwa
b) adult
c)pupa
d)All of these

8. The basic function of a flame cell is
a) excetion
b) osmoregulation
c) digestion
d) none of these

9. The scale in fishes are
a) ectodermal
b)endodermal
c) mesodermal
d) different in different fishes

10. The neck of a camel has vertebras:
a) 14
b) 9
c) 7
d) 20
e) none of these

11. Spiders are Arachnids and they have legs
a)6
b) 8
c) 9
d) none of these

12. Gill slits in chordates are present in
a)mouth
b) pharynx
c)oesophagus
d) All of these

13. Birds are flying and have ovaries
a) one on right side
b) both on right and left side
c) one on any side
d) one on left side

14. Adult echinoderm has symmetry
a) Bilateral
b) radial
c) both a and b
d) none of these

15. The typical characters of all mammals is
a) mammmary glands
b) brain
c) hair
d) All of these

16. Mouth in shark is located
a) dorsal
b) ventral
c) anterior end
d) none of these

17. The number of ribs in frog are
a) 4
b) 6
c) 8
d) none of these

18. Earth worm are dissected from side
a) Dorsal
b) ventral
c) both a and b
d) lateral

19. Duck billed platypus is a
a) Bird
b) placental mammal
c) monotreme
d) Marsupial

20. Silver fish is a member of
a) pisces
b) insects
c) echinodermata
d) none of these

[prissygirl]

Asalam o Alaikum,
the expected answers of the compulsory question are:


1. b)
2. b)
3. a)
4. c)
5. b)
6. b)
7. a)
8. a)
9. d)
10.c)
11.b)
12.b)
13.d)
14.b)
15.a)
16.b)
17.d)
18.a)
19.c)
20.b)
please correct if any answer is wrong.

everpraying

[prissygirl]

FEDERAL PUBLIC SERVICE COMMISSION

COMPETITIVE EXAMINATION FOR RECRUITMENT TO POSTS

IN BPS – 17 UNDER THE FEDERAL GOVERNMENT, 2005.

ZOOLOGY, PAPER - II

TIME ALLOWED: THREE HOURS MAXIMUM MARKS:100

NOTE: Attempt FIVE questions in all, including question No. 8 which is COMPULSORY. All questions carry EQUAL marks. Give diagram wherever reqiured.

1. a) List the steps involved in the synthesis of protien starting from DNA.
b) Give an account of morphology.chemical composition and functioning of golgi complex.

2. a) Briefly discuss the mechanism involved in transport of oxygen from lungs to tissues.
b) What are the different excretory products in animals?How and why these are produced in different animal groups.

3. a) Discuss the multiple allele inheritance with reference to inhertance of ABO blood groups in man.
b) Define epistasis?How does it differes from dominance?Give three examples of epistatic interactions.

4. a) Give a brief account of the possible origin of life on this globe.
b) Compare the darwin's theory of natural selection with the Lamark's theory of acquired characters.

5. a) Define ecosystem.discuss pond as an example of complete ecosystem.
b) What is biogeochemical cycle?Describe phophorus cycle.

6. a) Discuss the role of polyploidy in developmentment of commercial varieties in plants.
b) Discuss different enzymes involved in digestion in man.

7. Write shotr notes on:
a)sex linkage b)lysosomes
c)pituitary hormones d)air pollution

Compulsory Question

8. Write only the correct answer in the answer book.Donot reproduce the question

1. The chemical composition of a chromosome is :
a)lipoprotein
b) polysaccharide
c)nucleoprotein
d) None of these

2. Lysosomes are responsible for:
a) Protein
b) ATP formation
c) intracellular breakdown
d) None of these

3. Ribosomes are located on:
a) cell membrane
b) rough endoplasmic reticulum
c) mitochondria
d) nuclear membrane
e) None of these

4. The metaphase chromosomes are thick because these
a) multiply
b) duplicate
c) coiled coiling
d) none of these

5. Glycolysis occur in
a) cytoplasm
b)mitochondria
c) cell membrane
d) all of these

6. Nerves convey the message in the form of
a)physical impulse
b) chemical impulse
c) electrical impulse
d) none of these

7. Follicle stimulating hormone is produced in:
a) ovary
b) pituitary
c) hypothalamus
d) all of these

8. The primary excretory product is
a) Ammonia
b) Carbon dioxide
c) feaces
d) none of these

9. pepsin is responsible for digestion of:
a)carbohydrate
b) lipid
c)protein
d) all of these

10. XXY individual in men is phenotypically
a) male
b) female
c) intersex
d) none of these

11. Sex linked genes are located on :
a) only on X chromosome
b) only on Y chromosome
c) sex chromosome
d) All of these

12. Mendelian segregation is applicable to :
a) gametogenesis
b) meiosis
c) spore formation
d)none of these

13. the number of the alleles of a gene in a diploid individual is:
a) any number
b) one
c) two
d) three

14. The gene mapping is measured in:
a)Millimeters
b)microns
c)Angstrom
d) centi morga

15. genetic dominance concerns with the phenotypic expression in:
a) heterozygous
b) homozygous
c) both a and b
d) none of these

16. The first living organism was
a) Algal cell
b) virus
c) bacteria
d) none of these

17. Enzymes are chemically
a) carbohydrates
b) lipids
c) lipoproteins
d) proteins

18. Theory of natural selection was initially proposed by:
a) darwin
b) Wallace
c) both Dawin and Wallace
d) Eyll

19. Second law of thermodynamics demand
a) energy stability
b) energy loss during transfer of energy
c) Energy flow from one form to Another
d) none of these

20. The basic purpose of ecosystem is
a) maintainance of organisms
b) energy flow
c) chemical movements
d) none of these