TNPSC Group I Exam-Previous Year Question Paper-Subject wise Analysed Questions-Science-Part 9
201. Identical
twins are produced when
A) one
sperm is fertilized with two eggs
B) one
egg is fertilized with two sperms
C) one
fertilized egg is divided into two blastomers and separated
D) two eggs are fertilized with two sperms
Answer: (C)
202. In
human 47 number of chromosomes (22A + XXY) is resulted in
A) Down’s
syndrome
B) Klinefelter’s
syndrome
C) Turner’s
syndrome
D) Edward’s syndrome
Answer: (B)
203. Which
vaccine should be given to the newborn within 15 days of birth?
A) ‘O’
Polio B) DPT
C) MMR
vaccine D) Measles vaccine
Answer: (A)
204. Match
List I with List II correctly and select your answer using the
codes given below:
List I List
II
a) A,B,O
blood group 1.
Example for point mutation
b) Bald head in man 2. Dihybrid cross
c) Sickle
cell anaemia 3. Multiple alleles
d) Independent assortment 4. Sex influenced genes
Codes:
a b c d
A) 4 3 2 1
B) 3 4 1 2
C) 2 1 4 3
D) 1 2 3 4
Answer:
(B)
205. Consider
the following statements:
i) ADH
is secreted by adenohypophysis
ii) ADH
is secreted by infundibulum
iii) ADH
is secreted by neurohypophysis
iv) ADH is secreted by pineal gland
Of the statements:
A) (i) and (ii) are correct
B) (ii) alone is correct
C) (iii) alone is correct
D) (i), (ii) and (iii) are correct
Answer: (C)
206. Consider
the following statements:
Assertion (A) :
The sperm contains centriole in the neck
Reason
(R) : Centrioles are important for sperm count
Now
select your answer according to the coding scheme given below:
A) Both
(A) and (R) are false
B) A
is true, but (R) is false
C) Both
(A) and (R) are true and (R) is the correct reason
D) Both (A) and (R) are true, but (R) is not the
correct reason
Answer: (A)
207. Credit
for starting space Science Research in India goes to
A) Homi
J. Bhaba B) V. Sarabhai
C) C.V.
Raman D) S.S. Bhatnagar
Answer: (B)
208. Consider
the following statements:
Assertion (A) :
The space shuttle in which Kalpana chawla, the Indian born
American Scientist travelled, when reentered into the Earth
Atmosphere was burnt
Reason (R) : The space shuttle had the nose cap (made
of ceramics)
damages.
Now
select your answer according to the coding scheme given below:
A) (A)
and (R) are not correct
B) (A)
is correct, but (R) is not correct
C) (A)
and (R) are correct, and (R) is the correct explanation
D) (A)
and (R) are correct, but (R) is not the correct explanation
Answer: (C)
209. Which
of the following is NOT correct?
Mixing of alcohol with petrol.
A) saves
foreign exchange
B) is
ecofriendly
C) supports
sugar industry
D) prevents the possible of adulteration
Answer: (D)
210. Uranium
enrichment is concerned with
A) Cube B) Israel
C) Iran D) South Korea
Answer: (C)
211. The
plants which possesses anticancerous activity is
A) Seetha B) Polyalthia
C) Teak D) Murungai
Answer: (A)
212. The
marine algae commercially exploited for the production of ‘agar’ is
A) Sargassum B) Gracilaria
C) Laminaria D) Caulerpa
Answer: (B)
213. In
India AIDS was first reported in
A) 1932 B) 1986
C) 1990 D) 1992
Answer: (B)
214. Biologists
celebrated every year 5th June as
A) World
Water Day
B) World Environment Day
C) W.H.O.
Day
D) World Population Day
Answer: (B)
215. Which
one of the following is correctly matched?
A) FORTRAN - Typing a text
B) COBOL - Mathematical calculations
C) WORDSTAR - Business calculations
D) EXCEL - Tabulation
Answer: (D)
216. In
computers, 1KB and 1MB are respectively equal to
A) 1000
bytes and 100 kilobytes
B) 1024 bytes and 1000 kilobytes
C) 1000
bytes and 10,000 bytes
D) 1024 bytes and 100 kilobytes
Answer: (B)
TNPSC
GROUP – I Exam- 2000
(Preliminary-Original
Question paper)
217. That
the earth is almost spherical, was first stated by
A) Ptolemy B) Aryabhatta
C) Phythagoras D) Copernicus
Answer: (A)
218. The correct
sequence in decreasing order of the proposition of the given gases in the
atmosphere is
A) argon,
carbon dioxide, oxygen
B) carbon dioxide, oxygen, argon
C) oxygen,
argon, carbon dioxide
D) argon, oxygen, carbon dioxide
Answer: (C)
219. The
forms of matter are
A) 3 B) 4
C) 5 D) 7
Answer: (B)
220. Refrigeration
is a process which
A) kills
bacteria
B) slows down the bacterial growth
C) inactivates
the bacteria
D) plasmolyses the bacteria
Answer: (B)
221. The
weather map telecast in TV is photographed by the satellite
orbiting at a height of
A) 36,000
km B) 3,600 km
C) 3,600
miles D) 360 km
Answer: (D)
222. The
units for work and energy is
A) Joule B) Newton
C) Coulomb D) Dioptre
Answer: (A)
223. The
function of pace-maker is
A) regulation
of urine formation
B) regulation
of digestion
C) initiation
of heartbeat
D) initiation
of respiration
Answer: (C)
224. Einstein
got the Nobel Prize for
A) Relativity B) Photo-electric effect
C) Polarisation D) Radioactivity
Answer: (A)
225. Asia’s
biggest astronomical telescope is at
A) Kavanur B) Kodaikanal
C) Bangalore D) New Delhi
Answer: (A)
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