DO OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO

TEST BOOKLET
Sl. No: 0938
Subject Code: 25 Subject: ZOOLOGY

WRITTEN TEST FOR RECRUITMENT OF POST GRADUATE TEACHERS FOR

NON.GOVT. AIDED HIGHER SECONDARY SCHOOLS OF ODISHA
Time Allowed :2 Hours Moximum Mork:750

: INSTRUCTIONS TO CAI\IDIDATES:

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P.T.O.
I Echinoplutes larva is found in the develpment of:

(A) Sealily (B) Seacucumber

(C) Seaurchin (D) Sea star
) What is the function ofdactylozoid in the polymorphic colony ofa coelenterala?

(A) Nunition (B) Reproduction

(C) [ocomotion (D) Offenceanddefence

3. Whichofthefollowingcoelomoriginatesfromttrespliuingofmesodermispresentinannelids?

(A) Schizocoelom (B) Enterocoelom

(C) Pseudocoelom (D) Protocoelom

4. Intemal buds in spongesthatare formed during ubfavourable conditions are knownas:

(A) Btds (B) Gernmules

(C) Gasfiulae (D) Reductionbodies

5 LimulusAmoebocyte Lys4te (LAL) is used for the test of:

(A) Toxicsubstances @) lyrogens

(C) Solidresidues @) Foreignpartcles

6. Which ofthe following organisms uses the "Jet-siphon System" oflocomotion ?

(A) Unio (B) Aplysia

(C) Pinctada (D) Octopus

7 Which ofthe following are the excretory organs ofCrustacean (Prawn)?

(A) Nephridia (B) Greenglands

(C) Coxalglands (D) Malpighiantubules

8. Through mosaic vision, a cockroach can receive:

(A) Several imagesofanobject withhighersensitivity butlowresolution

(B) Several images ofan object with lowsensitivity but higherresolution

Zoology (Code:25) 2 Contd

 (C) Only one im4geofanobject with lowsensitivity buthigtterresolution

(D) Only one image ofan object with low sensitivity and low resolution

9' Whichoneofthefollowinghunanprotomrparasiteprimarilyaffectsthenracroptrages?

(A) wvax
Plasmodium (B) Leishmania donovani
(c) Trypanosomabrucei @)' Trichomonasvaginalis
10. What is the infective stage of schistosoma to man ?

(A) Hydatidcyst (B) Embryonraredova

(C) Cercar.ia @) Filarifonnlarva
I l. whichofthe followingcharacters isnotconpctaboutDipnoi ?

(A) Persistentunconstrictednotochord
(B) Diphycercalrail
(C) Respiration by lungs in addition to gill respiration
(D) Cartilaginots skull withamphistylicjawruryension
12. Select the correct group/set ofAustralian l,Iarsupials exhibiting
adaptive radiation:

(A) Numbat, Spotted cuscus, Flying phalanger

(B) Mole, Flying squinel, Tasnraniantigercat
(C) Lemur,Anteater,Wolf
(D) Tasmanian wol{, Bobcat, }vlanupial male
13' The migrationoffishes from one locationtoanotherlocationwithin the marine water for
reproduction is called as :

(A) hotamodromous (B) Anadromous

(C) Oceanodromous (D) Caradromous

14. Which of the following larva is a conunon ancestral form among

the echinoderns,
hemichordates and chordates ?

(A) Tornaria (B) Dipleurula

(c) Tiochophore (D) Bipinnaria

Zoology (Code : 25) 3 PT.O

1
15. following describes the identificationfeatures ofnon-poisonous snakes ?
,Whichofthe
(A) Cylindrical ail and small belly scales

(B) Cylindrical tail, broad tansverse belly scales and 4th infralabial scale is the largest

(C) Flat tail, broad tansverse belly scales and 3rd supralabial scale touches eye and nosfiil

(D) Cylindrical tail, broadtansverse belly scales and a loreal pit betrveen eye and nostril

I 6. Identiff the correct statement on the aquatic adaptation of whale :

(A) Presenceofnon-valvularnostil
(B) Hirdlimbsaenpdifiedintonifrys

(C) Non-elastic,large,lobuleslungs

(D) Presenceofhighconcentationofmyoglobin

17 . Which ofthe foltowing represents the conect dental formula ofa five year human child
?

o ,[, ?c! Pm -m-l

o21
,[, ?c! hn
2
(A) m- (B)
21 o2)
2l 2 o

221 lll
?c! Prn -m-l
(c) zli? c!I Prn -m-l
22) (D) ,[,
2l 111
L2
I 8. Which ofthe following organisms possesses 'Wheel organ' ?

(A) Brarrchiostoma (B) Herdmania

(C) Balanoglossrs (D) Doliolum

19. Which ofthe following is not a flight adaptation in birds?

(A) Bonesarehollowandairfilled

(B) Distensible lungs facititating bidirectional air flow

(C) Forelimbs are modified into wings

(D) Formationofbroadsternum

Zoology (Code : 25) 4 Contd.

 20- Metamorphosis ofamphibians is tiggered by enviromental cues that act onthe :

(A) ttrlnoid (B) pirriury

(C) 'hlpothalamus (D) eye

2l - which ofthe following is not a characteristic ofpopul3tion ?

(A) Shatification (B) Narality

(C) Mortality (D) Sexratio

22. Which ofthe followin statements is correct regarding ttre effect ofthe Keystone predator
in a
commurity?

(A) competitivelyexcludeotherpredators fromthecommunity

(B) Maintainqpeciesdiversitybypreyingonthepreyspeciestratistredominantoompetitor

(C) Increase the relative abundance ofthe most competitive prey species

(D) Encourage the coevolution ofpredator and prey adaptations.

23 . Which ofthe following is not a greenhouse gas ?

(A) Nitootsoxide (B) Niticoxide

(C) Methane (D) Carbondioxide

24' "Tropicalwetevergeen-typeforestofwestemghatsextendstoover600
sq.kmandproviding
a habitat for tiger, leopard, lion-tailed macaque and several other
species. This place is also
'&eoriginoft[eerivers-theNefiravathi,treTungaandtheBhadrarivef,. Theabovedescription
re{ers to whichofthe national park ?

(A) RajivGandhiNationalpark(Nagarhole)

(B) BannerghattaNationalpark

(C) BandipurNationalpark

(D) KudermukhNationalpark

Zoology (Code : 25) 5 P.T.O.

25. WhichofthefollowingstandardprobabilitydensityfunctionsisapplicabletodiscreteRandom
variables ?

(A) Gaussiandistribution (B) Poissondismibution

(C) Rayleighdisfiibtrtion (D) Exponentialdistibution

26. When conducting anANOVA, Frn n

d[ always fall within what range ?

(A) Betweennegative infinityandinfinity (B) Between zero and one

(C) Betweenzeroandinfinity (D) Betweenoneandinfinity

27 . When the regression line passes through the origin then...-. what ?

(A) The interceptis zero (B) The regressioncoefficientis rero

(C) The correlationis zero (D) The associationis zero

Zg. Among the following stiatements, which is the correct one, that refers to a Lactotype ?

(A) It is aduPlicate ofholotYPe

(B) Aryeinrcndescrfoodalongwitrholotype

(C) primary specimen cited by the author and upon which the name is based

(D) A specimen later selected from a group of syntypes to serve as the type specimen for
a species, after its originat description was published'

29. Which species concept utilizes the morphological and/or molecular characters to distinguish
betrveel species ?

(A) Evoluionary (B) Ecological

(C) Biological (D) PhYlogenetic

30. Acid rain is due to increase in atnospheric conc€ntation of :

(A) Ozoneanddust (B) CO, and CO

(C) SO, and CO (D) SO, and NO,

6 Contd.
Zoology (Code : 25)
 31. Whichone ofthe following is anexample ofGametic isolation ?

(A) Postmatingandprezygoticisolation (B) Prrenratingisolation

(C) Postrygoticisolation (D) Ethologicalisolation

32. Micro-evolution is the term used for changes in allele frequencies that occur over time. This
occurs:

(P) Mthin apopulation at qpecies level

(Q) Withinacommunityatgenuslevel

(R) Due to apperance ofnewgenes from infections

(S) Dueto mutatiorl natural selectiorq gene flowandgenetic drift

Which ofthe following combinations is appropriate ?

(A) and'R'
'P' (B) 'e'and .R'
(C) 'P'and'S' (B) .Q'and .S'

33 . The lBiological clock' in higher vertebrates is regulated by :

(A) ThePituitarygland

(B) Cerebral Contex

(C) Stpra-chiasmatic nucleus in hypothalamus

(D) Thyms

34. The pheromone which produces an immediate motor response, such as the initiation ofa
mounting sequence is known as :

(A) Primingpheromone (B) Generalpheromone

(C) Specificpheromone (D) Signalingpheromone

35 . Which ofthe following is not a necessary condition for Hardy-weinberg Equilibrium?

(A) Largepopulationsize (B) Randommating

(C) Migrationofindividuals (D) Nomutation

Zoology (Code : 25) 7 t

P.T.O
36. Which ofthe following statements best characteries natural selection?

(A) Natual selection is the mechanism by which predetermined adaptations are passed to
offsprings fromparents

(B) Natural selectionisthe differentsurvivorship andreproduction oforganismsthathave

- favourableadaptations.

(C) The natural environment is not involved with the process ofnatural selection, the
haritability oftaits is what drives evolution.

(D) For natural selection to occur, mutations have to be embedded in the genome.

37 . Which among the following is the'most primitive ancestor of Homo sapiens ?

(A) Homo erectus (B) Australopithecus

(C) Ramapithecus (D) Homo habilts

38. Mutation is essential for genetic variation, which one ofthe following events can lead to
variation amongst the gametes produced by males of Drosophila melanogaster?

(A) Segregation (B) knpdnting

(C) Recombination (D) IndependentAssorhnnet

39 . Male baboons establish higher or lower ranking among themselves through confrontations,
this determines their:

(A) Altuisn (B) Domhancehierarchy

(C) Fixedactionpattem (D) Territoriality

40 . Which ofthe following statements are not true about the Neural theory of molecular evolution
as proposed by Motoo Kimura ?

(A) The rate ofevolutionformost genes will be equal to the neutral mutation rate.

(B) Except for advantageous mutations, most alleles are under neutal selection.

(C) Advantageous mutations are exceedingly rare.

(D) At the lerel of DNA requences, genetic drift dominates thc evolutiort.

Zoology (Cdde : 2s) I Cdntd.

41. The pebrine disease of silkworm is caused by :

(A) bombycis
Nosema (B) Exorista bombycis

(C) Labia arachidis (D) Nosema cerronae

42. Which ofthe following is the major component ofhoney ?

(A) Dextrose (B) I-evulose

(C) water (D) Maltose

43 . Which one of ttre following is detimental to Pearl industy ?

(A) Cliona (B) Chelonia

(C) Pinctada (D) Euryongia

44. Following statements are conceming to the strface structure ofbacteria :

I. Peptidoglycan is thinner in Gram negative than in Gram positive bacteria

2. Lipopolysaccharides are found in both Gram positive and Gram negetive bacteria
3. Pili mediate interaction ofbacteria with mucosal epithelium.
4. Bacterial flagella are non antigenic as they have same chemical composition

Select the correct option :

(A) 1,2 and 3 (B) I and 3

(C) 2and4 (D) 1,2,3 and 4

45. What is a prophage ? Select the correct one ofthe following :

(A) DNA of lysogenic phage, integrated into the host chromosome

(B) It is a stage ofcell cycle

(C) LamMaphageDNA

(D) Aplasmid

46. Which ofthe following methods is useful for the isolation and detection oforganisms having
the ability to produce antibiotics ?

(A) Auanographictechnique (B) Errichmentcultrneectrrique

(C) Crdwdedplatetshnique ' (D) Irtdie$otdyetc6hdque

Zoology (Code : 25) I P.T.O

 47 . Which ofthe following phages do not cause lysogeny ?

(A) T2 (B) Tr
(C) kmMa (D) pr

48. Which ofthe following is not used for irdwed breeding in carps ?
(A) Ouaprim (B) Ovatide
(C) Wova-FH (D) Methyltesto

49. The process ofdirect uptake ald absorption of fragments ofbacterial DNA by the recipient
isknownas:

(A) Transfonnation (B) Tianduction

(C) C-onjugation (D) Trarsposition

50. Which ofthe following proteins has been produced generating a transgenic sheep, that is
used for replaconent tlrerapy for individuals at risk from emphysema ?

(A) Avarientofhumantissuetypeplasnrinogenactivator

(B) a- I -antitrypsin(AAI)
(C) Casein
(D) Amyloidprecursorprotein

51. Cytoskeleton that bears compression as well as tension is know as :

(A) actinfilanent (B) fuilennediatefilament

(C) microtrbule (D) miqofilarneil

52. Which ofthe following is the most likely explanation for a high percentage ofcrossing over
betweentwo genes ?

(A) Genes are located at differcnt locations on the same genome

(B) Genes are located on non-homologous chromosomes
(C) Genes are located very close to each other, near the centomere on the same
chromosome
(D) Genes are located far apart from each other on the same choromosome

Zoology (Code : 25) 10 Contd

53. Which ofthe following family ofproteins regulales the inrinsic pathway ofapoptosis ?

(A) Bcl-2 (B) Bcl-4

(C) Caspase - 2 (D) Caspase - 8

54. Symporters are cotansporters that tansport across cell mernbrane. Select the conect answer
forthe symportertansport across the cell membrane.

(A) Small molecules and gasses in the same direction

(B) Cationsand anions inthe opposite direction
(C) Na+ ions and glucose against concentration gradient
(D) Glucose against its concentration gradient
55. In a Robertsonian translocation, fusion occurs at the : .

(A) telomeres (B) cenfromeres

(C) long terminal repeats (D) end of long arms

56. At which stage ofcell division, the mammalian secondary Oocyte gets arrestedpriorto
the entry of sperm ?

(A) Prophase of Mitosis (B) Prophase of Meiosis - I

(C) G, Phase of mitotic cell cycle (D) Metaphase of Meiosis - II

57. In a dihybrid in F2, instead of the usual mendelian ratio of 9 : 3 : 3 :l often ratio of
9 : 7 is obtained in some of the crosses. This is possibly due to which type of gene
interactions ?

(A) . genes
Complementary (B) Supplementary genes
(C) Duplicate genes (D) Inhibitory genes

58. Gene mapping refers to the process of:

(A) identifring genes in a genome

(B) determining the physical location of genes on a chromosome or genome

(C) modifringgenestoaltertheirfunction

(D) tansferring genesbetweendifferentorganisrns

Zoology (Code: 25) 11 P.T.O

I
59. Human polydactyly taits having extra fingers or toes are caused by dominant alleles. In a
screening it was found that outof 42individuals having an allele for polydactyly, only 38 of
them are polydactylus. Which of the following is the correct interpretation ofthe above
observation ?

(A) Ttre penefrance ofpolydactyly is estimated tobe9tr/o

(B) The expressivity ofpolydactyly is 90%o

(C) This is an exarnple ofvariable expressivity

(D) Thepolydactylytaitis showingcompletepenetance

60. In which phase ofcell cycle DNA becomes 2C from 4C ?

(A) S (B) cr
(C) Metaphase (D) Anaphase
61. Which of the following functions as an enzyme as well as a procoagulant in blood
coagulation?

(A) hrothrombin (B) C:lcir.un

(C) Tlnomtin (D) Fibrinogen

62. Whichoneofttrcfollowingdoesrptdecreasettrcatrnitybetureentheorygenadhemoglobin?
(A) RiseinPCo,

(B) RiseinBloodpH

(C) Rise inthe level ofintraerythrocytic 2,3 -bisphospho-glycerate (BPG)

(D) Riseinbodytempbrature

63 . Which ofthe following neurotansmitters *bdd you expect to find in the synapse during fas
inhitiitory synaptic tansmission ?

(A) GABA (B) Acetylcholine

(C) Noradrenaline (D) Glutamate

Zoology (Code : 25) 12 Contd.

@. Which ofthe following parts ofa neptron is impermeable to water ?
(A) Proximalconvolutedtubule (B) Distalconvolutedtubule

(C) AsendinglimbofloopofHenle @) DesendinglimbofloopofHenle

65. Which of the following statements is correct for the fresh water fishes to maintain
osmoregulation?

(A) Bytakingbothwaterandsaltfromtheenvironment
(B) Continuously taking in water and eliminating excess of salt

(C) By eliminating excess ofwater and taking up salts from the environment

(D) By eliminating bottr salt and water into the environment

66. Secretion of which hormone from pars distails is under an inhibitory control of
hypothalamus?

(A).TSH (B) Prolactin

(c) FSH (D) ACTH

67 . Which of the following enzymes mediates the final and ratelimiting step of testosterone
biosynthesis in the testis ?

(A) CYP ll Al
(B) CYP l7 Al
(C) l7B hydroxysteroiddehydrogenase(l7B-HSD)
(D) 3B hydro-xysteroid dehydrogenase (3P - HSD)
68. Which one ofthe following is secondary messenger ?

(A) ArP (B) crP

(C) lnositoltiphosphate (D) Sodiurn
69. Which hormones are produced only during pregnancy ? Select the correct one :

(A) EstrogenandProgesteron
(B) RelaxinandOxytocin
(C) Htunan choriotric gonadotropin and Human placental lactogen
(D) LtrteinizinghormoneandProlactin

Zdology (Code: 25) 13 P.T.O

70. Which one of the following controls the secretion of Adrenocorticotropic hormone
(ACTrr) ?

(A) Epineehdne (B) THosterone

(C) Aldosterone (D) Cortisol

7| . What is the effect of 2, 4 - Dinitophenol on mitochondria ?

(A) ItblocksATPsynthesiswithotrtinhibitingel@fiontznsportbydissipatingtheproton
gradient

(B) ItblockselecfionuansportardATPsyntlresisbyinhibitingAlP-ADPexchangeurcross
ttre inner mitochondrial meinb,rance

(C) It blocks elctron tansport and poton pumping at complex I, II and III
(D) It interacts directly withAT? systtrase and inhibits its activity

72. Which ofthe following steps is not involved in mRNA processing ?

(A) 5t capping (B) Splicingofintons

(C) Polyadenylation (D) RNAsilencing

73 . In eukaryotic chromatin organizatiorl which one ofthe histones seals offthe nucleosome at
the location at which linker DNA enters and leaves the nucleosome ?

(A) Hr (B) H2^-H2B

(c) rL (D) H1

74. What is the effect of sudden increase in the levels ofAIP and Citrate on an erythrocyte
undergoing glycolysis ?

(A) It stimulates glycolysis

(B) Itffibitsglycolysis

(C) The rate ofglycolysis remains unaltered

(D) Therateofglycolysisincreasesgradually

Zoology (Code : 25) 14 Contd.

 a

75. Which ofthe following heat shock pnoteins prevent the misfolding ofprotein and maintain
polypeptide chain in' the tmfolded state?

(A) Hsp 60 (B) Hsp 28

(c) Hsp 70 (D) Hsp 32

76. Each cycle of B - oxidation produces:

(A) I FADH2, INAD* and I acetyl-CoA

:
(B) I EADH2, INADH+H'Td I acetyl-CoA

(C) I FADH2, lNADH'and2moleculesofCo,

(D) 1 FAD, INADH'and 2 molecules of Co,

77 . Which ofthe following factors is responsible for final detachment ofpolpeptide chain from
Ribosome during tanslation termination ?

(A) RF (B) RF2

(c) RF, (D) RRF

78. Inthe 'Genetic Code'whichofthe following is considered to be the'Wobble base'?

(A) lst base ofthe Codon (B) 2nd base ofthe Codon

(C) 3rd base ofthe Codon (D) 2nd and 3rd base of the Codon

79 . The kinetic pattern ofan enzyme, in the presence of increasing concentation of an inhibitor
shows no change in K. but declined V,,, value. Identify the nature ofthe inhibitor used :

(A) Uncompetitive (B) Non+ompetitive

(C) Competitive (D) Mixed-type

80. Which oftlre following techniques is usod in DNA fingerprinting ?

(A) Westernblotting (B) F:stemblotting

(C) Southemblotting (D) Noahernbloting

Zoology (Code : 25) 15 P.T.O.
 8 I . Which ofthe following antibodies can provide naturally acquired passive immunity for the
new born baby ?

(A) IsA (B) IsG

(c) IsE (D) reM

82. Antigenic processing and presentation are required.for :

(A) Cell-modiaredimmunity (B) Hunoralimmurity

(C) Innateimmurity (D) Complementqysrem

83. Whichtypeofstemcellscanbederivedftomtlreinnercellmassofablasocystofmammalian
embryo?

(A) Totipotent (B) plnripotent

(C) Multipotent (D) Unipotent

84. Which ofthe following exhibits delayed type ofhypersensitivity in human being ?

(A) Penicillinallergr (B) Contactdermatities

(C) Arthsreaction (D) Myasttreniagnvis

85. The dorsal most vegetal cells ofblastulawhich are capable of inducingthe organizerare
called:

(A) Primitivegroove (B) Greycrescent

(C) Nieuwkoopcenter (D) Hensen'smode

86. Which ofthe following type ofvaccines authorized by the Food and Drug administration,
USA (FDA) and WHO are proven to be effective and safe against COVID-I9?

(A) Vaccine
Live attenuated (B) mRNA Vaccine

(C) Conjugated vaccine (D) Toxoid vaccine

87 . The process ofregeneration oflimb in Salamander is an example of:

(A) Morphallaxis (B) Epimorphosis

(C) Compensatoryhypertrophy (D) Arlotomy

Zoology (Code : 25) 16 Contd,

o
88. The test that is usually done prior to tansplantation surgery to determine the competibility of
MHC proteins betrveenthe donor and the recipient is called:
(A) MHCmatching . (B) MHCtYPing
(C) Tissuetyping (D) BloodHlAtest
89. Each individual antigenic determinanatofthe variableregionofantibody is referredto as:
(A) Paratope (B) EPitoPe

(C) Agretope (D) IdiotoPe

90. Assistedreproductivetechnology,IVF involvestansferof:

(A) ovamintothefallopiantube.
(B) embryo upto 8<ell stage into the fallopiantube.
(C) embryo up to 8<ell stage into the uterus.
(D) embryowith 16blastomeresintottrefallopiantube.
gl . The resolution power oftansmission elecfron microscope is ofthe sub nanometer level. This
is because:

(A) The focal lengthofthe electonmicroscope is significantly larger

(B) The contast is enhanced by staining with atoms of heavy onetal
(C) The lecton beams used in electron microscope have much shorter wavelength than
visiblelight
(D) The electonmicroscope has amuchgreaterratio ofimage size to real size.

92. Which ofthe following forces is not used in cenftifugation?

(A) Electostaticforce (B) Gravitationalforce
(C) Centipetalforce (D) Centifirgalforce
93 . [n agarose gel electrophoresis the DNA fragments migrate towards:
(A) Cathode
(B) Anode
(C) Doesnotmovefromtheorigrn
(D) Partly move towards cathode and partly towards anode
94. How absorbance is related to the transmittance in Beer-Lambert's law? Select the correct
option:
(A) Absorbance is the logarithm oftansmittance.
(B) Absorbance is the reciprocal oftransmittance.
(C) Absorbance is the negative logarithm oftansmittance.
(D) Absorbance is amultiple oftransmittance.

Zoology (Code : 25) 17 P.T.O

 95. which ofthe following is used as a carrier gas in gas chromatography ?
(A) Carbondioxide (B)
Oryeen
(C) Heliun (D)
Methane
96' Which ofthe following primers are utilized in theproceduri ofpolymerase
chain reaction
(PCR) ?
(A) Single - stranded DNA oligonucleotide
(B) Double - stranded DNA oligonucleotide
(C) Double - stranded RNA oligonucleotide .

(D) Single - stranded RNA oligonucleotide

97' In liquid scintillation counter, which of the following is used to convert light into
electrical signals?

(A) tube
Photo multiplier (B) photo emissive tube

(c) Photo voltaic cell (D) photo reflector

98' Which of the following bands show only Intercalary Bands and Linear differentiation
in the human Chromosome's Karyotype ?

(A) G-Bands (B) e_Bands

(C) C-Bands (D) F-Bands
99- Youhavebeen askedtochoose afixativetofixthetissues bymakingthemethylene
bridge in
proteins. Which one would you choose ?
.
(A) Glacialaceticacid (B)
(c) Picricacid (D) osmiumtetaoxide
I 00. Histochemical localization ofproteins is performed by using:

(A) Sudanblack
(B) MercuricBromophenolblue
(C) Periodic acid schiffs (PAS) reagent

(D) Iodinepotassiumiodide(IKl)solution

Zoology (Code : 25) 18 Gontd.