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MBI
PROBABLE ANSWER -W.B.J.E.M - 2015
[ PREPARED AND MAINTAINED BY MEDICAL BASE INSTITUTE ‘s DR TAPAS KUILA ]
[BRANCH – BARASAT, BAGUIATI, COLLEGE STREET, SONARPUR ]
[ CONTACT NO. – 03325765236, 9433765718, 9748718301]
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ANSWER CODE BIOLOGICAL SCIENCE
Q.NO
Q.NO
CORRECT OPTION
P= 100%, R= 0%
Crop yields loss due to attack by Bacillus
thuringiensis bacterium is reduced
Chitin
Microfilariae
61.B
30%
Birds
Malaria
Allopatric species
ADH
1972
Yersinia pestis
Oxytocin
Pineal gland
It occurs in haploid cell
Linoleic acid, linolenic acid and arachidonic
acid
Percentage of crossing over or recombinant
frequency between the two genes [Hints:The percentage of offspring resulting from
recombinant gametes depends on the
distance between the two genes on the
same chromosome]
Biomagnification
65. C
66.B
67. C
68. D
69. B
70. A
71.A
72. C
73. D
16. A
17. A
18. A
19. A
20.B
21. C
22. D
23.B
Lizard
Pepsinogen
Hyaluronidase
Columnar
70 ml
Staphylococci
SO2−
4
Monoclonal antibodies
76.A
77. D
78. C
79. B
80. C
81. A
82.B
83. B
24.B
Secondary aerobic treatment
84. C
25. A
Outside the plasma membrane
[Hints:- Apoplast- An inter connected
system in plants that consists of all the cell
wall ]
Gibberellin
H + Gradient across the membrane
85. B
1. D
2. A
3.B
4.C
5.B
6.D
7. A
8. C
9. D
10. C
11. A
12. C
13.D
14.D
15. A
26.B
27.A
CORRECT OPTION
62.C
63. D
64. C
74. B
75. A
86.A
87. B
Retention of larval traits in the adult body
Ecotone
[Hints: A region of transition between two
biological communities O𝘹ford dictionary]
Keystone species
DNA→ RNA→Protein
Organ of Corti
Pupil
Pericardium
Low temperature
Occurs in relatively low CO2 concentration
Mitochondrial matrix
Animals belonging to the phylum Porifera
have nematocyst
Ten pairs of cranial nerves
Rio convention- air pollution [Hints:Rioconvention-convention on climate
change(CCC) ]
Peptidoglycan in the cell wall
Reducing in cell size
Lac repressor and CAP- cAMP complex
Gibberellin
3n
Parthenocarpy
Grafting
It is affected by interruption of long dark
period by brief exposure of light
A specific part of DNA from the Ti plasmid
gets integrated with the plant chromosome
[Hints; Transgenic plant]
Replacing the defective gene with a
functional gene
50S ribosome
They act as channel proteins
28.B
29. D
30. C
31.B
32.B
33. D
34. B
[Hints:- Proton gradient]
Are inversely proportional
Man And Biosphere Programme
Lists of threatened species
Between communities
Gamma (𝛾) amino butyric acid
Penicillins
Spermatogonia → spermatocyte→
spermatid→spermatozoa
88.B
89.C
90. C
91B
92. A
93.C
94.C
35. A
36. B
37. C
38. A
Pheromones
Synergids
Snails
Sclereides
95. A
96. B
97. B
98..B
39. D
40.A
41. B
42.A
43.C
Bacillus subtillis
They always follow criss -cross inheritence
Rotenone
Hibernation
Reptiles and birds
99.B
100.C
101. B
102.D
103. A
44.B
45B
Alpha (𝛼) cells of islets of Langerhans
Young hyaline matrix of true bone in which
calcium salts are deposited [Hints- Osteocidi) Resmbling bone. Ii) The organic matrix of
bone that has at undugone calcification Ref: Medical Dictionary]
Nerve [ Hints- Individual axon are called
Nerve fibre, Many nerve fibre together form
a nerve or nerve tract .
Tract (C ) is corret but more accurate
option is Nerve (A)
104. C
105.B
107. A
.
C
49. B
Phenylalanine-N- methyltransferase
Norepinephrin
← Phenylethanolamine
.
Methyltransferase
Epinephrine[ Medical physiology-Indu
Kharana, pg-769]
Transport of water towards pericycle
[ Hints:- Passage cells are endometrial cells
of older roots which have retained thin
walls and casperian strips rather than
becoming suberized and waterproof like the
other cells around them to continual to
allow symplastic flow to inside.
Passage cell function to allow transfer of
solutes such as calcium and magnesium into
the stele]
Xylem parenchyma
50.D
Non-catalytic site of the enzyme
110. A
46. A
(more
correct),
C
47. B
48. A
106.B,
.
C,
.
D
Phagocytosis
5'-AUG-3'
Catalase enzyme
Mitochondria, nucleus and chloroplast
P- iv, Q- iii, R-i, S-ii
P-iii,Q-iv
𝐴𝐴𝐵𝐵𝐷𝐷𝐸𝐸
16 [Hints= 2𝑛 = 24 = 16
𝑎𝑎𝑏𝑏𝑑𝑑𝑒𝑒
n=contrasting pair ]
P-ii, Q-i, R-iii, S-iv
ii, iii, iv, vi
P-ii, Q-Iv, R-i, S-iii
Mitochondria [Hints: Presence of
mitochondrial ds DNA]
P-ii, Q-i, R-iv, S-iii
P-iv, Q-iii, R-ii, S-i
ii,iii, v
P-iv, Q-i, R-iii, S-ii
It has 1500 or more endemic species and
75% of its original habitat is lost
i,ii,iv,vi
P= 19-20 m, Q=48 ml, R= 14-15 ml, S= 52 ml
Higher rate of secretion of gastric and
duodenal juices
Improper neutralization of gastric juice by
duodenal juices
Imbalance between the rate of secretion of
gastric juice and the degree of protective
offered by gastro duodenal mucosa
Direction of the reaction is influenced by
H+
Ionization state of the substrate is modified
108. A
.
C
.
D
It is observed in Gram positive and Gram
negative bacteria
Transfer of DNA by a bacteriophage takes
place
Packaging of both host and phage DNA
takes place
109.A
B
C
D
It has led by Sunderlal Bahuguna
It was a tree hugging movementIt
commenced in the Tehri-Garhwal district It
received global attention on environmental
protection
Gir-Asiatic Lion
.
C
51.A
National park
111.A,B,C
52. B
Both DNA and histone protein
112.A,
B
C
53. A
Mollusca- Pseudocoel
113. A, C
Periyar -Indian Elephant [ Hints; Periyar
National Park and Wild life Sanctury(PNP) district of Idukki and Panthananthitta in
Kerala, -India, Reservation of elephant and
tiger ]
Plastic, Organochlorine pesticides, Heavy
metals
Encephalities-Viral disease
Kala-azar- Phlebotomus
Rhabdiform larvae- Ascaris
[Hints – sporogony found in Plasmodium]
Factor- IX, Factor- X
𝐸𝘹𝑡𝑟𝑖𝑛𝑠𝑖𝑐 𝑝𝑎𝑡ℎ𝑤𝑎𝑦
[Hints IX →
IXA ,
𝐸𝘹𝑡𝑟𝑖𝑛𝑠𝑖𝑐 𝑝𝑎𝑡ℎ𝑤𝑎𝑦
54.A
Shell fish - Pisces
55.B
58. B
Abnormal secretion of pancreatic gastric
juices
Secretin
Variable regions of a light and another
heavy chain [Hints- Diagram of Antibody]
Molybdenum - iron protein
59.D
Copper
60.A
Liquid form containing dissolved minerals
56.A
57. A
114 C,
D
115A, B,
D
116A,B,D
117.
A,B,D
118. B
C
119. A
B
C
D
120 A,
B,
D
.
X →
XA
Trigeminal and facial,
Glossopharyngeal and vagus
Abscisic acid, CO2 - concentration
Light intensity
Ammonia, Methane, Hydrogen
Teichoic acid, Pseudomurein, Mycolic acid
It stains densely with basic dyes
It is highly condensed in interphase
It is inherited by complete dominant allele
It is inherited by complete recessive allele
It is inherited by co- dominant allele
It is inherited by single gene with more than
two alleles
A mammal,
Commonly known as black buck
A threatened Indian Wild life
[N.B; Antilop ceruicapra - Correct Scientific
name(www.Indian Wild Life .com)