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Kerala PSC HSST Zoology solved Paper 2018

Kerala PSC HSST Zoology solved Previous question Paper
Question Code: 051/2018
Higher Secondary School Teacher (Zoology)-Kerala Higher Secondary Education
QUESTION BOOKLET ALPHACODE A
Date of Test : 19/04/2018


 51. TH cells generally recognise antigen combined with

A) Class I MHC molecules

B) Immunosuppressant

C) Class II MHC molecules

D) None of the above

52. Which one of the following is considered as a third generation vaccines?

A) Recombinant microbial vaccines

B) DNA vaccines

C) Conjugate vaccines

D) Killed vaccines


53. Addition of microbes to enhance health benefits is

A) Probiotics 

B) Humulin

C) Prebiotics 

D) None of the above


54. The square root of the average will be equal to the squares of the individual observation from their arithmetic mean

A) Standard error

B) Chi-square test

C) Standard deviation

D) Variance


55. A group of distinct organism classified and assigned to a definite category.

A) Species 

B) Taxon

C) Category 

D) Genus


56. The marginal zone of a pond merging with the surrounding land is an example of

A) Biome 

B) Edge effect

C) Biota 

D) Ecotone


57. Gulf of mannar is a

A) Protected area 

B) Biosphere reserve

C) National park 

D) Sanctuaries


58. Lion-tailed macaque is considered as

A) Endangered species

B) Vulnerable species

C) Rare species

D) Extinct species


59. Populations reproductively isolated and live in different habitat but occupy same territory are known as

A) Ethological isolation

B) Temporal isolation

C) Ecological isolation

D) Morphological isolation


60. The animals tend to develop huge size and birds lose the power of flight and bright colour in those Islands

A) Galapagos Islands

B) Oceanic Islands

C) Ancient Islands

D) Continental Islands


61. If, DNA is found to have the base composition of A = 40, T = 22, C = 17 and G = 21 then the DNA will be

A) Double stranded

B) Single stranded

C) Linear duplex

D) Circular duplex


62. Methylation of DNA most commonly occurs in the sequence of

A) Cp T 

B) Cp C

C) Cp A 

D) Cp G

63. The example of inducible operon is

A) lac-operon 

B) try-operon

C) arginine operon 

D) TRP operon


64. In 2017, the discovery of molecular mechanisms controlling the circadian rhythm, won Nobel prize for

A) Rainer, Barry and Kip

B) Jacques, Joachim and Richard

C) Jeffrey, Michael and Michael

D) None of the above


65. Sickle cell anaemia is caused by the substitution of

A) Glutamic acid at the 5th position in β Chain of Hb by valine 

B) Glutamic acid at the 6th position in β Chain of Hb by arginine

C) Glutamic acid at the 6th position in β Chain of Hb by alanine

D) Glutamic acid at the 6th position in β Chain of Hb by valine


66. The RNA polymerase recognize a seven-base sequence on the promoter region called

A) Pribnow box 

B) Operons

C) TATA box 

D) Enhancers


67. During pregnancy intake of certain medicines causes foetal toxicity like hyperkalemia and hypertension.

A) Thalidomide 

B) ACEI

C) Valproic acid 

D) 13-cis Accutane


68. Amnion is the foetal membrane developed from

A) Somatopleure

B) Chorionic cavity

C) Chorionic villi

D) Amniotic cavity


69. Automicticdiplosis occurs in

A) Hymenoptera and Coleoptera

B) Thysanoptera and Rotifers

C) Rotifers and Coleoptera

D) Lepidopterans and Hymenopterans


70. The correct series of events representing the development of vertebrate

A) Cleavage, Blastula, Gastrulation, Organogenesis, Neurulation, Growth

B) Cleavage, Blastula, Gastrulation, Neurulation, Organogenesis, Growth

C) Blastula, Gastrulation, Cell migration, Organogenesis, Growth

D) Blastula, Cell migration, Gastrulation, Neurulation, Growth


71. Dependent variable in the process of teaching is

A) Teacher 

B) Student

C) Learning experiences 

D) Learning aids


72. Optacon is a technical aid for

A) Mentally challenged pupils 

B) Physically challenged pupils

C) Slow learners 

D) Visually challenged pupils


73. Which among the new type of test items have premises and responses?

A) Multiple choice test item

B) Matching type test items

C) Alternate response type test items

D) Completion type test items


74. Epi-position of the epidiascope is used to project the

A) Flat opaque objects 

B) Lantern slides

C) Large slides 

D) Transparent slides


75. A group technique popularised by A.F. Osborn to develop creative thinking is

A) Panel discussion 

B) Brain storming

C) Role playing 

D) Group discussion

Answers:

51 C

52 B

53 A

54 C

55 B

56 D

57 B

58 A

59 C

60 B

61 B

62 D

63 A

64 C

65 D

66 C

67 B

68 A

69 D

70 B

71 B

72 D

73 B

74 A

75 B



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