TRB: Tentative Key Answers - P.G. ASSISTANT EXAM - 02.07.2017 (ZOOLOGY)

TRB – P.G. ASSISTANT EXAM – 02.07.2017 

TENTATIVE KEY ANSWERS (REVISED) 

ZOOLOGY

(Expected Cut-off = 87 ± 5)

Booklet Series – A

1.       B) Z-DNA – Right handed helix

2.       C) Phospho-diester bonds

3.       C) Sereocilia do not contain microtubules

4.       C) RNAse H

5.       B) I^AI^O

6.       B) Invertase -Sucrose

7.       C) Pepsin - Gastric gland-protein

8.       C) Vermiform appendix is made up of lymphatic tissue

9.       A) Q10= (K₂/K₁)^[10/(T2-T1)].

10.    D) Ventricular repolarisation

11.    D) Intestine

12.    B) Mammals  

13.    B) Sporozoites, schizont, merozoites, meta cryptozoites

14.    B) Cysticercus

15.    C) Seminal vesicle is found in male pigeon

16.    B) Pantothenic acid

17.    B) faster and more exergonic than reaction 2

18.    B) (iv) (iii) (ii) (i)

19.    A) (a) 2015;2011 (b) 640

20.    A) H_O; X² value is less than the table value

21.    B) Cladogenesis / divergent evolution

22.    D) Division of labour

23.    B) Kinesis

24.    C) Members of different subspecies don’t interbreed even when brought together

25.    C) (a) and (c)

26.    C) epinephrine

27.    B) Arrhenotoky

28.    D) Both (A) and (B) are false

29.    A) IgE

30.    D) (iv) (i) (v) (ii) (iii)

31.    B) (iv) (iii) (i) (ii) (v)

32.    C) Founder effect

33.    C) Orthologous

34.    B) Slow

35.    B) Palearctic and Oriental regions

36.    C) (a) and (c) only

37.    C) HOX

38.    B) Cowper’s gland / No Answer

39.    C) Uterus

40.    C) Fovea centralis

41.    B) (b) only

42.    A) (d) and (c) only

43.    B) a-Stabilizing; b- Disruptive

44.    B) (v) (iii) (iv) (i) (ii)

45.    A) Ranthambore National Park

46.    A) Lotka – Volterra model

47.    C) Epilimnion and Hypolimnion

48.    B) (A) and (R) are true; (R) is the correct explanation for (A).

49.    C) CD16

50.    B) Type II Hypersensitivity reaction

51.    A) Homo erectus

52.    C) water vapour, methane, ammonia, hydrogen  

53.    A) Mundanthurai

54.    C) Tadytelic rate  

55.    A) Silurian - Palaeozoic

56.    B) Parasitic food chain

57.    A) Littoral zone

58.    A) Koel and crow

59.    C) Ramsar, Iran

60.    A) (iii) (v) (iv) (ii) (i)

61.    D) Mitochondria

62.    A) Arginine

63.    C) Rough endoplasmic reticulum

64.    C) rRNA + Proteins

65.    C) 23 S rRNA

66.    B) Crossing-over occurs within the alleles of a same series  

67.    B) Synapsis – duplication – crossing over – terminalization.

68.    D) Purelines and homozygotes

69.    B) α - 1 antitrypsin

70.    B) (iv) (ii) (i) (iii)

71.    D) Conversion of ATP into ADP

72.    B) Prosencephalon, Deuteroncephalon, Mesencephalan, Rhombeacephalon 

73.    A) (A) and (R) are true; (R) is the correct explanation for (A).

74.    A) (iv) (iii) (v) (i) (ii)

75.    C) TNF-α

76.    C) Tunicin

77.    C) Schistosoma

78.    D) Tornaria and Redia

79.    B) Plasmodium falciparum

80.    A) Metagenesis

81.    B) Ribose ; Dihydroxyacetone

82.    C) 16

83.    C) Hendersen – Hasselbach equation

84.    D) Carnitine

85.    B) It has high dielectric constant

86.    A) John Belling

87.    C) Phenylalanine hydroxylase and PKU

88.    D) Green, white and variegated progeny

89.    C) Terminalisation of chiasma

90.    B) Caedobacter taenospiralis

91.    A) (p) r=0, (q) r=close to +1 or -1

92.    B) The variables (X and Y) are positively correlated

93.    C) r=0.815

94.    C) Class frequency

95.    B) 33

96.    D) Anabas

97.    B) (iv) (iii) (ii) (i)

98.    C) (iii) (iv) (v) (ii) (i)

99.    C) 173.6 cm

100.C) Z -DNA

101.D) r = +1

102.A) A-27^O B- 162^O AB-72^O O-99^O

103.B) The variables in t-distribution range from -1 to +1

104.A) Shrinks due to exosmosis

105.A) Symport

106.B) Duodenum

107.B) as bicarbonates

108.A) Stenohaline

109.B) actin and ATP

110.B) Vitamin E

111.A) Abdul Ghaffar Khan

112.C) Grade skipping

113.B) Personality Profile

114.C) Flash-card

115.A) trans-situational

116.C) Sri Aurobindo

117.A) 21 May 2015

118.B) Rogers and Shoemaker

119.B) Socialist, Secular and Integrity

120.A) 1980

121.C) 1979

122.D) Autonomous Schools : A reality

123.A) Mand

124.D) reinforcement in perceptual learning

125.B) Sequence

126.A) 1996

127.B) 1974

128.A) Presentation Portfolio

129.A) Social Cognition

130.B) Classical Conditioning

131.C) Making the system work better

132.D) Noam Chomsky

133.B) Ogden Lindsley

134.D) Recognition and Reconstruction

135.D) May, 1961

136.B) Stimulus discrimination

137.C) Empiricism

138.C) Traits

139.A) E.L. Thorndike

140.D) Robert White

141.A) Silver Iodide

142.B) Centrifugation

143.A) (iii) (i) (ii) (iv)

144.D) Foot Ball  

145.B) Aurangzeb

146.D) (iv) (iii) (i) (ii)

147.C) (iv) (ii) (i) (iii)

148.B) Chola

149.C) Blue

150.C) Sikkim  

Expected Cut-off = 87 ± 5

ALL THE BEST 

by 
Mr. V. Ashokan,
Assistant Professor,
P.G. Dept. of Zoology,
Government Arts College,
Dharmapuri - 636705.
9500881414