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Test - 6 (Code E) (Answers & Hints) All India Aakash Test Series for Medical-2016
1/8
1. (2)
2. (4)
3. (2)
4. (3)
5. (4)
6. (4)
7. (2)
8. (3)
9. (3)
10. (2)
11. (2)
12. (1)
13. (4)
14. (2)
15. (3)
16. (2)
17. (1)
18. (2)
19. (4)
20. (4)
21. (1)
22. (2)
23. (1)
24. (3)
25. (1)
26. (2)
27. (3)
28. (1)
29. (3)
30. (2)
31. (2)
32. (4)
33. (1)
34. (4)
35. (1)
36. (3)
37. (1)
38. (3)
39. (4)
40. (1)
41. (4)
42. (4)
43. (2)
44. (3)
45. (1)
46. (4)
47. (1)
48. (4)
49. (1)
50. (1)
51. (4)
52. (2)
53. (3)
54. (3)
55. (1)
56. (2)
57. (3)
58. (2)
59. (3)
60. (4)
61. (2)
62. (4)
63. (3)
64. (2)
65. (3)
66. (1)
67. (4)
68. (4)
69. (4)
70. (2)
71. (4)
72. (3)
ANSWERS
TEST - 6 (Code-E)
All India Aakash Test Series for Medical-2016
Test Date : 28-02-2016
73. (1)
74. (4)
75. (4)
76. (4)
77. (1)
78. (2)
79. (3)
80. (4)
81. (4)
82. (2)
83. (3)
84. (4)
85. (1)
86. (4)
87. (3)
88. (1)
89. (1)
90. (4)
91. (2)
92. (1)
93. (2)
94. (4)
95. (1)
96. (3)
97. (1)
98. (2)
99. (1)
100. (2)
101. (4)
102. (1)
103. (4)
104. (4)
105. (3)
106. (3)
107. (3)
108. (3)
109. (3)
110. (2)
111. (4)
112. (4)
113. (1)
114. (2)
115. (4)
116. (2)
117. (3)
118. (4)
119. (4)
120. (2)
121. (3)
122. (2)
123. (4)
124. (1)
125. (1)
126. (4)
127. (4)
128. (1)
129. (2)
130. (2)
131. (1)
132. (4)
133. (1)
134. (3)
135. (1)
136. (2)
137. (2)
138. (4)
139. (2)
140. (1)
141. (3)
142. (1)
143. (4)
144. (3)
145. (1)
146 (1)
147. (3)
148. (3)
149. (4)
150. (3)
151. (2)
152. (1)
153. (3)
154. (4)
155. (4)
156. (3)
157. (4)
158. (3)
159. (2)
160. (3)
161. (4)
162. (2)
163. (4)
164. (3)
165. (2)
166. (4)
167. (3)
168. (2)
169. (2)
170. (1)
171. (2)
172. (3)
173. (3)
174. (4)
175. (3)
176. (3)
177. (2)
178. (4)
179. (4)
180. (2)
All India Aakash Test Series for Medical-2016 Test - 6 (Code E) (Answers & Hints)
2/8
Hints to Selected Questions
[ PHYSICS]
1. Answer (2)
0
04
iB
r
[sin 53° – sin37°]
2. Answer (4)
0 02 1
2 2 ( )
I I
x a x
2
1 2
I ax
I I
3. Answer (2)
4. Answer (3)
5. Answer (4)
In parallel LC circuit
l = IL ~ I
C
If IL > I
C,
IL – I
C = 1
0.6 – IC = 1 I
C = 0.4 A
If IC > I
L,
IC – I
L = 1
IC – 0.6 = 1 I
C = 1.6 A
6. Answer (4)
M B
7. Answer (2)
8. Answer (3)
M = il2, M = ir2, 2r = 4l
9. Answer (3)
10. Answer (2)
11. Answer (2)
12. Answer (1)
tantan
cos
apparent angle of dip
true dip
13. Answer (4)
14. Answer (2)
15. Answer (3)
0
4
iB
r
[sin + sin]
16. Answer (2)
Fm [ ]q V B
17. Answer (1)
18. Answer (2)
19. Answer (4)
20. Answer (4)
21. Answer (1)
22. Answer (2)
23. Answer (1)
24. Answer (3)
i = i0[1 – e–t/]
L
R
⎡ ⎤ ⎢ ⎥⎣ ⎦
25. Answer (1)
26. Answer (2)
0
2
iB
R
and
n.2R = L
n = 2
27. Answer (3)
0
4
iB
R
[sin + sin]
4sin
5 and sin = 1
28. Answer (1)
29. Answer (3)
11.5 rad A
i
V i V
SS S RS
R
⇒
30. Answer (2)
∵ = BA cosand
.inde
t
31. Answer (2)
Steady current is at t = and inductor offers zero
resistance.
32. Answer (4)
1 1
2
NM
i
33. Answer (1)
34. Answer (4)
q = q0 cos(t) and i = i
0 sin(t).
Test - 6 (Code E) (Answers & Hints) All India Aakash Test Series for Medical-2016
3/8
35. Answer (1)
36. Answer (3)
2
2 2
1
2effective
II I
37. Answer (1)
38. Answer (3)
39. Answer (4)
40. Answer (1)
41. Answer (4)
42. Answer (4)
43. Answer (2)
44. Answer (3)
45. Answer (1)
[ CHEMISTRY]
46. Answer (4)
O
HH
⇒
OHO H
(Phenol)
47. Answer (1)
6 -electron
(Aromatic)
4 -electron
(Antiaromatic)
10 -electron
Non-planar(Non-aromatic)
H
H
(tub-shape)Non-planar
Non-aromatic
(8 -electron)
⇒
48. Answer (4)
sp2
Weak overlapping
sp2
N N
H H
sp2
49. Answer (1)
50. Answer (1)
51. Answer (4)
*
, Number of chiral carbon = 1
52. Answer (2)
C CCl Cl
Cl Cl
Cl Cl–
C CCl Cl
Cl Cl
Cl Cl–
i.e. —CCl3 group acts as meta-directing due to
reverse hyperconjugation
53. Answer (3)
54. Answer (3)
55. Answer (1)
Alcohol Ether
a. CH3CH
2CH
2CH
2OH (i) CH
3—O—CH
2CH
2CH
3
b. CH —CH—CH OH3 2
CH3
(ii) CH —O—CH—CH3 3
CH3
c. CH —CH—CH —CH3 2 3
OH
(iii) CH3CH
2—O—CH
2CH
3
d. CH —C—OH3
CH3
CH3
56. Answer (2)
Cis-but-2-ene on bromination in CCl4 gives racemic
mixture of product but trans-but-2-ene gives meso
form of product.
All India Aakash Test Series for Medical-2016 Test - 6 (Code E) (Answers & Hints)
4/8
57. Answer (3)
CH3
CH3
CH3C
OH
OH
O
CH —C3
Cl
Cl
CH C—CH2 3
CH —C—CH3 3
+ HCHO
CH3
O
O /Zn
H O
3
2
aq. KOH
H O2
PCl5
–H O2
CH —C—CH3 3
58. Answer (2)
59. Answer (3)
+ O
CCH
2
CH2 C
AlCl3
anhy.
C
C
OO
O
OO
O
O
CH2
CH2
CH2
CH2
OH—C
NaO—C
(A)
Sodalime
or NaOH/CaO
–Na CO2 3
NaOH
60. Answer (4)
61. Answer (2)
Order of melting point
> >
62. Answer (4)
ClBr
HC NaC CNa2g.eq.
NaNH2
2g.eq.
NaNH2
CH
63. Answer (3)
Clean water has minimum BOD value.
64. Answer (2)
65. Answer (3)
4 2 3CH I CH I HI � ,
RCH COOAg + I2 2
RCH COOR + AgI +CO2 2
CCl4
66. Answer (1)
U.V.6 6 2 6 6 6Light
Benzene BHC
C H 3Cl C H Cl
67. Answer (4)
CH CH—CH2 3
(Allylic bromination reaction) Succinimide
CH CH—CH2 2
Br + NBS
N—H
O
O
68. Answer (4)
69. Answer (4)
70. Answer (2)
> > >
71. Answer (4)
Percentage of P =62
222
× 2 2 7
Mass of Mg P O formed100
Mass of the organic compound
= 62 0.444
100222 0.40
= 31%
72. Answer (3)
Photochemical smog contains O3, PAN & NO
x.
73. Answer (1)
MIC : Methyl isocyanate
74. Answer (4)
75. Answer (4)
3 CH CHRed hot
Fe tube
(Benzene)Aromatic
Heterocyclicaromatic(Thiophene)S
8
1S
8
76. Answer (4)
CF —CH CH3 2
+ H
CF —CH—CH3 3
(Less-stable)
(More stable)
CF —CH —CH
3 2 2
Test - 6 (Code E) (Answers & Hints) All India Aakash Test Series for Medical-2016
5/8
77. Answer (1)
78. Answer (2)
CH2
CH2
CH2
Br Br
Zn-dust+ ZnBr
2
CH2
CH2
CH2
MgBr Br–MgBr
2
CH2
CH2
CH2
Mg
dry ether
Cyclopropane
79. Answer (3)
H
–H
4 -electron
(Antiaromatic)
–H
6 -electron
(Aromatic)
80. Answer (4)
81. Answer (4)
CHCl + KOH3
C + KCl + H O2
Cl
Cl
(Dichlorocarbene)
82. Answer (2)
E1CB
Mechanism :
CCH3
CH3
CH —CH—CH2 2
CH3
F H
OH
–H O
2
C
C
CH3
CH3
CH3
CH3
CH —CH—CH2 2
CH —CH CH2 2
CH3
CH3
F
–F
(Major)
83. Answer (3)
Inductive effect is a permanent effect but electromeric
effect is a temporary effect.
84. Answer (4)
CH COOK2
CH2
+ 2CO + KOH + H2 2
CH COOK
2CH
2
Kolbe'selectrolysis
CH—COOK CH
+ CO + KOH + H2 2
CH COOK— CH
Kolbe'selectrolysis
+ CO + KOH + H2 2
Kolbe'selectrolysis
COOK
COOK
85. Answer (1)
CH C CH2 2
O C O + HCHO
(B)
O /Zn
H O
3
2
Mo O /O
543 K / 100 atm
2 3 2
sp-hybrid(A)
CH4
(C)
(C H )3 4
86. Answer (4)
87. Answer (3)
+I-effect decreases the acidic strength of carboxylic
acid and –I-effect increases the acidic strength of
carboxylic acid.
88. Answer (1)
Cl
ClCl
Cl
, , ,
Cl
Cl,
89. Answer (1)
90. Answer (4)
All India Aakash Test Series for Medical-2016 Test - 6 (Code E) (Answers & Hints)
6/8
91. Answer (2)
(a) Bacteria - 70S ribosome
(b) Three enzymes
(d) Prototroph
92. Answer (1)
QB-Bacteriophage–RNA as the genetic material.
93. Answer (2)
SnRNA in splicing.
94. Answer (4)
95. Answer (1)
5-Methyl uracil is thymine which provides extra
stability.
96. Answer (3)
Pribnow box is promoter site in prokaryotes.
97. Answer (1)
hnRNA synthesis is catalysed by RNA pol II.
98. Answer (2)
George Gammow, the physicist.
99. Answer (1)
UAG is a stop codon.
100. Answer (2)
101. Answer (4)
Translocase
102. Answer (1)
103. Answer (4)
104. Answer (4)
Distance between two bp is 0.34 nm = 0.34 × 10–9 m
Length of DNA = 1.7 m or 1.7 × 109 nm
Number of base pairs = 1.7 × 109 nm × 0.34 nm
= 5 × 109 bp
105. Answer (3)
N14 and N15
106. Answer (3)
Lactose / Allolactose.
107. Answer (3)
108. Answer (3)
Rho factor is required for chain termination in
transcription.
109. Answer (3)
Splicing of hnRNA in eukaryotes
110. Answer (2)
111. Answer (4)
A+T
G+Cis constant for a species e.g., 0.93 for E. coli
112. Answer (4)
Both strands of DNA act as template for synthesis
of daughter DNA.
113. Answer (1)
Reverse transcription
114. Answer (2)
Euchromatin is loosely packed DNA.
115. Answer (4)
116. Answer (2)
Chilli
117. Answer (3)
118. Answer (4)
Vitamin content
119. Answer (4)
Statins – Monascus
120. Answer (2)
Trichoderma polysporum
121. Answer (3)
122. Answer (2)
123. Answer (4)
Somatic hybridisation.
124. Answer (1)
125. Answer (1)
126. Answer (4)
127. Answer (4)
128. Answer (1)
129. Answer (2)
130. Answer (2)
Cottage cheese – Streptococcus lactis and
Lactobacillus
Geotrichum – Lipase
Shakti and Protina – Maize
131. Answer (1)
Butyric acid
[ BIOLOGY
]
Test - 6 (Code E) (Answers & Hints) All India Aakash Test Series for Medical-2016
7/8
132. Answer (4)
Methanogenesis as last step
133. Answer (1)
134. Answer (3)
Nitrogen fixing bacteria
135. Answer (1)
Cyanobacteria
136. Answer (2)
Gametocytes are formed in RBC of human.
137. Answer (2)
Typhoid is spread through contaminated food and
water. Rabies is caused by Rhabdo virus. Diphtheria
spreads through respiratory discharge.
138. Answer (4)
Mast cells are not phagocytic. Kupffer cells are
phagocytic cells of liver. Histiocytes/clasmatocytes
are macrophages.
139. Answer (2)
NK cells do not mature in thymus.
140. Answer (1)
141. Answer (3)
142. Answer (1)
MALT (Mucosal associated lymphoid tissues) is
secondary or peripheral lymphoid organ.
143. Answer (4)
Fact
144. Answer (3)
Tetanus toxoid provides artificial active immunity.
145. Answer (1)
146 Answer (1)
IgA is secretory antibody.
147. Answer (3)
148. Answer (3)
Diphtheria – Schick test
149. Answer (4)
Schizogony takes place in liver cells and RBC of
man.
150. Answer (3)
151. Answer (2)
Fact
152. Answer (1)
Secondary immune response is due to subsequent
encounter of the body with antigen. It is heightened,
lasts much longer and is a rapid response.
153. Answer (3)
154. Answer (4)
Histamine hastens allergy response
155. Answer (4)
Skin and mucous membrane are a part of anatomic
barriers.
156. Answer (3)
Sibling species are almost identical morphologically
but are distinct from each other due to absence of
interbreeding.
157. Answer (4)
158. Answer (3)
Free or molecular oxygen was absent on primeval
earth.
159. Answer (2)
160. Answer (3)
161. Answer (4)
162. Answer (2)
Mule and hinny are sterile.
163. Answer (4)
Darwin’s finches is an example of adaptive radiation.
164. Answer (3)
Neanderthal man lived near east and central Asia.
They had prognathous face.
165. Answer (2)
166. Answer (4)
167. Answer (3)
Bryophytes have been evolved from chlorophyte
ancestors.
168. Answer (2)
169. Answer (2)
q = 0.3
p = 1 – 0.3 = 0.7
2pq = 2(0.3)(0.7) = 0.42
Number of heterozygous individuals = 0.42 × 200
= 84
All India Aakash Test Series for Medical-2016 Test - 6 (Code E) (Answers & Hints)
8/8
� � �
170. Answer (1)
171. Answer (2)
Non-random mating affects HWE.
172. Answer (3)
Germ theory of disease and lmmunology was given
by Louis Pasteur.
173. Answer (3)
Australopithecus give rise to homo habilis and also
increase in cranial capacity.
174. Answer (4)
In Pliohippus, each fore limb and hind limb had one
complete finger and one complete toe respectively
and two splints hidden beneath skin.
175. Answer (3)
Dinosaurs became dominant in Jurassic period of
mesozoic era.
176. Answer (3)
Nipples in male is an example of vestigeal organ.
177. Answer (2)
178. Answer (4)
179. Answer (4)
180. Answer (2)
Test - 6 (Code F) (Answers & Hints) All India Aakash Test Series for Medical-2016
1/8
1. (3)
2. (1)
3. (4)
4. (2)
5. (2)
6. (3)
7. (4)
8. (1)
9. (3)
10. (1)
11. (3)
12. (2)
13. (3)
14. (2)
15. (4)
16. (4)
17. (1)
18. (3)
19. (1)
20. (4)
21. (3)
22. (1)
23. (3)
24. (4)
25. (3)
26. (2)
27. (2)
28. (4)
29. (3)
30. (4)
31. (1)
32. (4)
33. (2)
34. (3)
35. (4)
36. (4)
37. (1)
38. (1)
39. (4)
40. (2)
41. (2)
42. (1)
43. (2)
44. (2)
45. (4)
46. (2)
47. (3)
48. (3)
49. (1)
50. (2)
51. (3)
52. (4)
53. (3)
54. (4)
55. (4)
56. (4)
57. (1)
58. (4)
59. (3)
60. (2)
61. (2)
62. (4)
63. (3)
64. (1)
65. (2)
66. (4)
67. (4)
68. (4)
69. (4)
70. (3)
71. (3)
72. (4)
ANSWERS
TEST - 6 (Code-F)
All India Aakash Test Series for Medical-2016
Test Date : 28-02-2016
73. (1)
74. (2)
75. (2)
76. (4)
77. (1)
78. (4)
79. (1)
80. (4)
81. (3)
82. (1)
83. (1)
84. (4)
85. (2)
86. (3)
87. (3)
88. (2)
89. (3)
90. (2)
91. (3)
92. (1)
93. (3)
94. (4)
95. (3)
96. (4)
97. (4)
98. (3)
99. (2)
100. (2)
101. (3)
102. (3)
103. (2)
104. (4)
105. (1)
106. (4)
107. (2)
108. (2)
109. (1)
110. (4)
111. (4)
112. (4)
113. (3)
114. (2)
115. (2)
116. (4)
117. (1)
118. (1)
119. (3)
120. (1)
121. (1)
122. (2)
123. (2)
124. (3)
125. (2)
126. (4)
127. (3)
128. (4)
129. (3)
130. (1)
131. (3)
132. (2)
133. (4)
134. (3)
135. (4)
136. (4)
137. (2)
138. (4)
139. (4)
140. (1)
141. (1)
142. (2)
143. (1)
144. (1)
145. (4)
146. (3)
147. (4)
148. (4)
149. (1)
150. (4)
151. (4)
152. (1)
153. (2)
154. (4)
155. (2)
156. (1)
157. (4)
158. (1)
159. (2)
160. (1)
161. (2)
162. (4)
163. (1)
164. (3)
165. (4)
166. (3)
167. (2)
168. (1)
169. (1)
170. (3)
171. (3)
172. (1)
173. (2)
174. (3)
175. (1)
176. (3)
177. (4)
178. (2)
179. (4)
180. (4)
All India Aakash Test Series for Medical-2016 Test - 6 (Code F) (Answers & Hints)
2/8
Hints to Selected Questions
[ PHYSICS]
1. Answer (3)
2. Answer (1)
3. Answer (4)
4. Answer (2)
5. Answer (2)
6. Answer (3)
7. Answer (4)
8. Answer (1)
9. Answer (3)
10. Answer (1)
2
2 2
1
2effective
II I
11. Answer (3)
12. Answer (2)
q = q0 cos(t) and i = i
0 sin(t).
13. Answer (3)
14. Answer (2)
1 1
2
NM
i
15. Answer (4)
Steady current is at t = and inductor offers zero
resistance.
16. Answer (4)
∵ = BA cosand
.inde
t
17. Answer (1)
11.5 rad A
i
V i V
SS S RS
R
⇒
18. Answer (3)
19. Answer (1)
0
4
iB
R
[sin + sin]
4sin
5 and sin = 1
20. Answer (4)
0
2
iB
R
and
n.2R = L
n = 2
21. Answer (3)
22. Answer (1)
i = i0[1 – e–t/]
L
R
⎡ ⎤ ⎢ ⎥⎣ ⎦
23. Answer (3)
24. Answer (4)
25. Answer (3)
26. Answer (2)
27. Answer (2)
28. Answer (4)
29. Answer (3)
30. Answer (4)
Fm [ ]q V B
31. Answer (1)
0
4
iB
r
[sin + sin]
32. Answer (4)
33. Answer (2)
34. Answer (3)
tantan
cos
apparent angle of dip
true dip
35. Answer (4)
36. Answer (4)
37. Answer (1)
38. Answer (1)
M = il2, M = ir2, 2r = 4l
39. Answer (4)
40. Answer (2)
M B
Test - 6 (Code F) (Answers & Hints) All India Aakash Test Series for Medical-2016
3/8
41. Answer (2)
In parallel LC circuit
l = IL ~ I
C
If IL > I
C,
IL – I
C = 1
0.6 – IC = 1 I
C = 0.4 A
If IC > I
L,
IC – I
L = 1
IC – 0.6 = 1 I
C = 1.6 A
42. Answer (1)
43. Answer (2)
44. Answer (2)
0 02 1
2 2 ( )
I I
x a x
2
1 2
I ax
I I
45. Answer (4)
0
04
iB
r
[sin 53° – sin37°]
[ CHEMISTRY]
46. Answer (2)
47. Answer (3)
48. Answer (3)
Cl
ClCl
Cl
, , ,
Cl
Cl,
49. Answer (1)
+I-effect decreases the acidic strength of carboxylic
acid and –I-effect increases the acidic strength of
carboxylic acid.
50. Answer (2)
51. Answer (3)
CH C CH2 2
O C O + HCHO
(B)
O /Zn
H O
3
2
Mo O /O
543 K / 100 atm
2 3 2
sp-hybrid(A)
CH4
(C)
(C H )3 4
52. Answer (4)
CH COOK2
CH2
+ 2CO + KOH + H2 2
CH COOK
2CH
2
Kolbe'selectrolysis
CH—COOK CH
+ CO + KOH + H2 2
CH COOK— CH
Kolbe'selectrolysis
+ CO + KOH + H2 2
Kolbe'selectrolysis
COOK
COOK
53. Answer (3)
Inductive effect is a permanent effect but electromeric
effect is a temporary effect.
54. Answer (4)
E1CB
Mechanism :
CCH3
CH3
CH —CH—CH2 2
CH3
F H
OH
–H O
2
C
C
CH3
CH3
CH3
CH3
CH —CH—CH2 2
CH —CH CH2 2
CH3
CH3
F
–F
(Major)
55. Answer (4)
CHCl + KOH3
C + KCl + H O2
Cl
Cl
(Dichlorocarbene)
56. Answer (4)
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57. Answer (1)
H
–H
4 -electron
(Antiaromatic)
–H
6 -electron
(Aromatic)
58. Answer (4)
CH2
CH2
CH2
Br Br
Zn-dust+ ZnBr
2
CH2
CH2
CH2
MgBr Br–MgBr
2
CH2
CH2
CH2
Mg
dry ether
Cyclopropane
59. Answer (3)
60. Answer (2)
CF —CH CH3 2
+ H
CF —CH—CH3 3
(Less-stable)
(More stable)
CF —CH —CH
3 2 2
61. Answer (2)
3 CH CHRed hot
Fe tube
(Benzene)Aromatic
Heterocyclicaromatic(Thiophene)S
8
1S
8
62. Answer (4)
63. Answer (3)
MIC : Methyl isocyanate
64. Answer (1)
Photochemical smog contains O3, PAN & NO
x.
65. Answer (2)
Percentage of P =62
222
× 2 2 7
Mass of Mg P O formed100
Mass of the organic compound
= 62 0.444
100222 0.40
= 31%
66. Answer (4)
> > >
67. Answer (4)
68. Answer (4)
69. Answer (4)
CH CH—CH2 3
(Allylic bromination reaction) Succinimide
CH CH—CH2 2
Br + NBS
N—H
O
O
70. Answer (3)
U.V.6 6 2 6 6 6Light
Benzene BHC
C H 3Cl C H Cl
71. Answer (3)
4 2 3CH I CH I HI � ,
RCH COOAg + I2 2
RCH COOR + AgI +CO2 2
CCl4
72. Answer (4)
73. Answer (1)
Clean water has minimum BOD value.
74. Answer (2)
ClBr
HC NaC CNa2g.eq.
NaNH2
2g.eq.
NaNH2
CH
75. Answer (2)
Order of melting point
> >
76. Answer (4)
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77. Answer (1)
+ O
CCH
2
CH2 C
AlCl3
anhy.
C
C
OO
O
OO
O
O
CH2
CH2
CH2
CH2
OH—C
NaO—C
(A)
Sodalime
or NaOH/CaO
–Na CO2 3
NaOH
78. Answer (4)
79. Answer (1)
CH3
CH3
CH3C
OH
OH
O
CH —C3
Cl
Cl
CH C—CH2 3
CH —C—CH3 3
+ HCHO
CH3
O
O /Zn
H O
3
2
aq. KOH
H O2
PCl5
–H O2
CH —C—CH3 3
80. Answer (4)
Cis-but-2-ene on bromination in CCl4 gives racemic
mixture of product but trans-but-2-ene gives meso
form of product.
81. Answer (3)
Alcohol Ether
a. CH3CH
2CH
2CH
2OH (i) CH
3—O—CH
2CH
2CH
3
b. CH —CH—CH OH3 2
CH3
(ii) CH —O—CH—CH3 3
CH3
c. CH —CH—CH —CH3 2 3
OH
(iii) CH3CH
2—O—CH
2CH
3
d. CH —C—OH3
CH3
CH3
82. Answer (1)
83. Answer (1)
84. Answer (4)
C CCl Cl
Cl Cl
Cl Cl–
C CCl Cl
Cl Cl
Cl Cl–
i.e. —CCl3 group acts as meta-directing due to
reverse hyperconjugation
85. Answer (2)
*
, Number of chiral carbon = 1
86. Answer (3)
87. Answer (3)
88. Answer (2)
sp2
Weak overlapping
sp2
N N
H H
sp2
89. Answer (3)
6 -electron
(Aromatic)
4 -electron
(Antiaromatic)
10 -electron
Non-planar(Non-aromatic)
H
H
(tub-shape)Non-planar
Non-aromatic
(8 -electron)
⇒
90. Answer (2)
O
HH
⇒
OHO H
(Phenol)
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91. Answer (3)
Cyanobacteria
92. Answer (1)
Nitrogen fixing bacteria
93. Answer (3)
94. Answer (4)
Methanogenesis as last step
95. Answer (3)
Butyric acid
96. Answer (4)
Cottage cheese – Streptococcus lactis and
Lactobacillus
Geotrichum – Lipase
Shakti and Protina – Maize
97. Answer (4)
98. Answer (3)
99. Answer (2)
100. Answer (2)
101. Answer (3)
102. Answer (3)
103. Answer (2)
Somatic hybridisation.
104. Answer (4)
105. Answer (1)
106. Answer (4)
Trichoderma polysporum
107. Answer (2)
Statins – Monascus
108. Answer (2)
Vitamin content
109. Answer (1)
110. Answer (4)
Chilli
111. Answer (4)
112. Answer (4)
Euchromatin is loosely packed DNA.
113. Answer (3)
Reverse transcription
114. Answer (2)
Both strands of DNA act as template for synthesis
of daughter DNA.
115. Answer (2)
A+T
G+Cis constant for a species e.g., 0.93 for E. coli
116. Answer (4)
117. Answer (1)
Splicing of hnRNA in eukaryotes
118. Answer (1)
Rho factor is required for chain termination in
transcription.
119. Answer (3)
120. Answer (1)
Lactose / Allolactose.
121. Answer (1)
N14 and N15
122. Answer (2)
Distance between two bp is 0.34 nm = 0.34 × 10–9 m
Length of DNA = 1.7 m or 1.7 × 109 nm
Number of base pairs = 1.7 × 109 nm × 0.34 nm
= 5 × 109 bp
123. Answer (2)
124. Answer (3)
125. Answer (2)
Translocase
126. Answer (4)
127. Answer (3)
UAG is a stop codon.
128. Answer (4)
George Gammow, the physicist.
129. Answer (3)
hnRNA synthesis is catalysed by RNA pol II.
130. Answer (1)
Pribnow box is promoter site in prokaryotes.
131. Answer (3)
5-Methyl uracil is thymine which provides extra
stability.
[ BIOLOGY
]
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132. Answer (2)
133. Answer (4)
SnRNA in splicing.
134. Answer (3)
QB-Bacteriophage–RNA as the genetic material.
135. Answer (4)
(a) Bacteria - 70S ribosome
(b) Three enzymes
(d) Prototroph
136. Answer (4)
137. Answer (2)
138. Answer (4)
139. Answer (4)
140. Answer (1)
Nipples in male is an example of vestigeal organ.
141. Answer (1)
Dinosaurs became dominant in Jurassic period of
mesozoic era.
142. Answer (2)
In Pliohippus, each fore limb and hind limb had one
complete finger and one complete toe respectively
and two splints hidden beneath skin.
143. Answer (1)
Australopithecus give rise to Homo habilis and also
increase in cranial capacity.
144. Answer (1)
Germ theory of disease and lmmunology was given
by Louis Pasteur.
145. Answer (4)
Non-random mating affects HWE.
146. Answer (3)
147. Answer (4)
q = 0.3
p = 1 – 0.3 = 0.7
2pq = 2(0.3)(0.7) = 0.42
Number of heterozygous individuals = 0.42 × 200
= 84
148. Answer (4)
149. Answer (1)
Bryophytes have been evolved from chlorophyte
ancestors.
150. Answer (4)
151. Answer (4)
152. Answer (1)
Neanderthal man lived near east and central Asia.
They had prognathous face.
153. Answer (2)
Darwin’s finches is an example of adaptive radiation.
154. Answer (4)
Mule and hinny are sterile.
155. Answer (2)
156. Answer (1)
157. Answer (4)
158. Answer (1)
Free or molecular oxygen was absent on primeval
earth.
159. Answer (2)
160. Answer (1)
Sibling species are almost identical morphologically
but are distinct from each other due to absence of
interbreeding.
161. Answer (2)
Skin and mucous membrane are a part of anatomic
barriers.
162. Answer (4)
Histamine hastens allergy response
163. Answer (1)
164. Answer (3)
Secondary immune response is due to subsequent
encounter of the body with antigen. It is heightened,
lasts much longer and is a rapid response.
165. Answer (4)
Fact
166. Answer (3)
167. Answer (2)
Schizogony takes place in liver cells and RBC of
man.
168. Answer (1)
Diphtheria – Schick test
169. Answer (1)
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� � �
170. Answer (3)
IgA is secretory antibody.
171. Answer (3)
172. Answer (1)
Tetanus toxoid provides artificial active immunity.
173. Answer (2)
Fact
174. Answer (3)
MALT (Mucosal associated lymphoid tissues) is
secondary or peripheral lymphoid organ.
175. Answer (1)
176. Answer (3)
177. Answer (4)
NK cells do not mature in thymus.
178. Answer (2)
Mast cells are not phagocytic. Kupffer cells are
phagocytic cells of liver. Histiocytes/clasmatocytes
are macrophages.
179. Answer (4)
Typhoid is spread through contaminated food and
water. Rabies is caused by Rhabdo virus. Diphtheria
spreads through respiratory discharge.
180. Answer (4)
Gametocytes are formed in RBC of human.