TS SET 2012: Paper II, Life Sciences
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Test Paper : II Test Booklet Serial No. : ______________________
OMR Sheet No. : ________________________________
Test Subject : LIFE SCIENCES
Hall Ticket No.
Test Subject Code : A-09-02
(Figures as per admission card)
Name & Signature of Invigilator
Name : ____________________________________ Signature : ___________________________________
Paper : II
Subject : LIFE SCIENCES
Time : 1 Hour 15 Minutes Maximum Marks : 100
Number of Pages in this Booklet : 16 Number of Questions in this Booklet : 50
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LIFE SCIENCES
Paper – II
1. Eukaryotic mRNA can be separated from 4. Which of the following organellae does
the total RNA by not carry out transcription ?
(A) Size Exclusion chromatography (A) Nucleus
(B) Ion-Exchange chromatography (B) Peroxisome
(C) Affinity chromatography (C) Chloroplast
(D) Partition chromatography (D) Mitochondrian
2. Which of the following involves the 5. Given below are two statements
combining of two cells without cell walls
Assertion (A) : Hexokinase and
from different plants ?
Glucokinase have low
(A) Clonal propagation
and high k m towards
(B) Hybridization
glucose respectively.
(C) Protoplast fusion
Reason (R) : Glucokinase operates
(D) Mutant selection
under high glucose
3. Non-polar amino acid residues are found concentratian only .
mostly Which of these statements are correct ?
(A) In the core of proteins (A) A is correct but R is wrong
(B) On the surface of proteins (B) R is correct but A is wrong
(C) On alpha helix (C) Both A and R are correct
(D) In no specific region (D) Both A and R are wrong
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6. Given below are two statements. One 8. Match the following
labelled as Assertion (A) and the other I. Nuclear Magnetic Resonance 1. Microwaves
labelled as Reason (R) II. Electron Spin Resonance 2. Radiowaves
III. Raman spectroscopy 3. UV/Visible light
Assertion (A) : Protooncogenes are IV. Spectrophotometry 4. Infrared waves
found in most of the I II III IV
animal cells. (A) 4 3 2 1
Reason (R) : They are related to viral (B) 1 2 4 3
oncogenes. (C) 2 1 4 3
(D) 2 3 4 1
In the context of these statements which
one of the following is correct ? 9. Match the following
(A) A is correct but R is wrong I. Bt cotton 1. Improved shelf life
(B) Both A and R are correct II. Flavr Savr Tomato 2. Improved nutritional quality
III. Roundup Ready 3. Pest resistance
(C) A is wrong but R is correct
Sorghum
(D) Both A and R are wrong
IV. Golden Yellow Rice 4. Herbicide tolerance
7. Given below are two statements I II III IV
(A) 4 2 1 3
Assertion (A) : All eukaryotic mRNAs are
(B) 3 1 4 2
capped at 5′ end
(C) 4 2 3 1
Reason (R) : 5′ cap is not essential for
(D) 3 2 1 4
efficient mRNA translation
10. Viruses that persist in the cell and cause
Which of these statements are correct ? recurrent disease are called
(A) A is correct, R is wrong (A) Oncogenic viruses
(B) Both A and R are correct (B) Latent viruses
(C) A is wrong R is correct (C) Cytopathic viruses
(D) Both A and R are wrong (D) Resistant viruses
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11. Assertion (A) : Indirect somatic 13. Match the following
embryogenesis, I. Pyridoxal phosphate 1. Vitamin B
1
embryos are developed II. Niacin 2. Vitamin B
6
without going through III. Thiamin pyrophosphate 3. Vitamin B2
callus formation. IV. Flavin nucleotides 4. Vitamin B
3
I II III IV
Reason (R) : This is possible due to
(A) 1 2 3 4
the presence of pre-
(B) 2 4 1 3
embryonically
(C) 4 3 2 1
determined cells. (D) 3 4 1 2
(A) Both A and R are true but R is not
14. The protein structure is stabilized by
correct reason for A
I. Hydrogen bonds
(B) A is false but R is true II. Disulphide bonds
(C) A is true but R is false III. Glycolidic bonds
(D) Both A and R are true and R is the IV. Hydrophobic interactions
correct reason for A (A) I and II are correct
(B) II, III and IV are correct
12. In complement cascade the complement (C) I and IV are correct
1 activate as follows (D) I, II and IV are correct
I. C1q 15. Two dimensional electrophoresis involves
II. C1r (A) SDS-PAGE in 1st dimension and IEF
III. C1s in 2nd dimension
(B) IEF in 1st dimension and SDS-PAGE
IV. C1d
in 2nd dimension
(A) I, II, III, IV
(C) IEF in 1st dimension and PFGE in
(B) II, III, IV, I 2nd dimension
st
(C) III, IV, II, I (D) IEF in 1 dimension and TLC in
(D) IV, III, II, I 2 nd dimension
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16. Electron Transport chain contains the 18. Give the correct sequence of following
following components :
steps used in Southern hybridization
I. Cytochrome C-oxidase
II. Succinate/COQ oxidoreductase 1. Blotting membrane
III. NADH : COQ oxidoreductase 2. Restriction digestion
IV. Coenzyme Q : cytochrome
3. Detection
oxidoreductase
4. Separation by electrophoresis
Choose correct one of following
sequences Choose the correct one
(A) III, II, IV, I
(A) 4, 1, 2, 3
(B) II, III, IV, I
(C) I, IV, III, II (B) 2, 4, 1, 3
(D) IV, III, II, I
(C) 4, 2, 1, 3
17. The correct order of chromatin (D) 2, 1, 4, 3
organization from the following is
I. Nucleosome 19. According to ICBN Rules the suffix of
II. Solenoid
family name ends with “aceae”, whereas
III. Double stranded DNA
prefix refers to
IV. Chromosome
(A) Specific epithet
Choose the correct sequence
(A) I, IV, II, III (B) Characteristic feature of the family
(B) III, I, II, IV
(C) Generic epithet
(C) I, II, III, IV
(D) Specific character of basic species
(D) III, IV, I, II
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21. Assertion (A) : Apospory is not uncommon
20. Pick up the correct combination of the
following using valid name and part used in some ferns like Pteris
(A) Millets-Sorghum vulgare - Poaceae-
Reason (R) : In ferns some times the
caryopsis
Pulses-Cajanus cajan-Fabaceae- prothallus is formed from
Cotyledons vegetative parts of
Fibers-Gossypiumherbaceum-
sporophytic plant
Malvaceae-Epidermal hairs of seed
Fruit-Mangifera indica-Anacardiaceae- (A) Both A and R are true, R is the
Epicarp and Mesocarp of drupe correct explanation of A
(B) Millets-Sorghum vulgare - Poaceae-
Caryopsis (B) Both A and R are true, but R is not
Pulses-Cajanus cajanus-Fabaceae- the correct explanation of A
Cotyledons
(C) Both A and R are not true
Fibers-Gossypium herbaceum-
Malvaceae-Epidermal hairs of seed (D) A is true, but R is false
Fruit-Mangifera indica-Anacardiaceae-
Epicarp and Mesocarp of drupe 22. This biosphere reserve is recently notified
(C) Millets-Sorghum vulgare - Poaceae-
by the Government of India
Caryopsis
Pulses-Cajanus cajan-Fabaceae- (A) Valley of Flowers
Cotyledons
(B) Nanda Devi
Fibers-Gossypiumherbaceum-
Malvaceae-Epidermal hairs of fruit (C) Nallamalais
Fruit-Mangifera indica-Anacardiaceae-
Epicarp and Mesocarp of drupe (D) Seshachalam
(D) Millets – Sorghum vulgare - Poaceae-
Caryopsis 23. Epiphytes are rare in Delhi because it has
Pulses-Cajanus cajan-Fabaceae- (A) Moist climate
Cotyledons
Fibers-Gossypiumherbaceum- (B) Semi-arid climate
Malvaceae-Epidermal hairs of seed (C) Large amount of factories
Fruit-Mangifera indica-Anacardiaceae-
(D) Large number of automobiles
Mesocarp and endocarp of drupe
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24. Arrange the following in progressive 26. Pick up the sources of air pollution from
manner with special reference to the following :
ecological succession in xerosere I. Volcanic eruptions
I. Funaria II. Dust storms
II. Rhizocarpon III. Domestic sewage
IV. Pulp mills
III. Poa
V. CFMs
IV. Trees
(A) I, II and III
(A) I, II, III, IV
(B) I, II, III and V
(B) II, I, IV, III
(C) II, IV and V
(C) II, I, III, IV
(D) I, II and V
(D) I, III, II, IV
27. Which of the following has more redox
25. Match the following : potential (E0) value ?
1. Aquatic habitats I. Sciophytes (A) Flavo proteins
2. Community in abundant light II. Xerophytes (B) Cytochrome B
3. Community in shade III. Heliophytes (C) Nicotinamide adenine dinucleotide
4. Community in dry conditions IV. Mesophytes (D) Ubiquinone
V. Hydrophytes
28. Respiratory quotient (R.Q) value of a
1 2 3 4 simple sugar is
(A) V III I II (A) Zero
(B) V IV I II (B) More than one
(C) V III II I (C) Less than one
(D) V II I III (D) Equal to one
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29. Given below are two statements, one 31. Which one of the following combination
labeled as Assertion (A), and the other or chromosome number (N) and DNA
labeled as Reason (R) content (C) is true of the diplotene stage
Assertion (A) : The pronounced decrease of mammalian oocytes ?
in quantum yield at red
(A) 1N & 2C (B) 2N & 4C
zone (greater than 680 nm)
is termed as red drop. It is (C) 2N & 2C (D) 1N & 4C
also known as Emerson’s
effect. 32. Assertion (A) : As polyspermy is being
Reason (R) : Discovery of Emerson’s slowly blocked, the
effect has clearly shown cortical granules explode
the existence of two
and release their contents
photosystems.
In the context of the above two statements into the perivitelline
which one of the following is correct ? space.
Codes :
(A) A is correct but R is wrong Reason (R) : Quick blocking of
(B) A is wrong but R is correct polyspermy sets in
(C) A is correct, R is also correct
depolarization of the egg
(D) A is wrong, R is also wrong
plasmalemma and
30. Arrange the following compounds in order
mobilization of Ca2+ from
in which they appear in Krebs cycle. Use
the code given below. stores with in the egg.
I. Succinic acid (A) Both A and R are true and R is the
II. Fumaric acid correct explanation of A
III. Oxaloacetic acid
(B) Both A and R are true but R is not
IV. Malic acid
the correct explanation of A
Code :
(C) A is true but R is false
(A) III, IV, II, I (B) I, II, IV, III
(C) II, III, I, IV (D) I, III, II, IV (D) Both A and R are false
II} 9 A-09-02
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33. During early human brain development 35. The order of evolutionary pattern of
primary vesicles listed in List I gives rise
nitrogen excretion in animals is as follows
to derivatives in List II
(A) Urea, Uric acid, Ammonia
List I List II
(B) Ammonia, Uric acid, Urea
I. Telencephalon 1. Mid brain
II. Mesencephalon 2. Optic vesicle (C) Urea, Ammonia, Uric acid
III. Diencephalon 3. Cerebellum (D) Ammonia, Urea, Uric acid
IV. Myelencephalon 4. Hippocampus
36. Mammalian heterodonty is expressed by
Code : a dental formula. Match the dental formula
I II III IV
to the organism
(A) 4 1 2 3
List I List II
(B) 2 1 3 4
(C) 4 2 1 3 0, 0, 3, 3
I. = 32 1. Rabbit
3, 1, 3, 3
(D) 3 2 1 4
2, 0, 3, 3
II. = 28 2. Man
34. During neural tube formation in the chick 1, 0, 2, 3
embryo the neural plate involves following 1, 0, 2, 3
III. = 22 3. Sheep
events in sequences 1, 0, 1, 3
(A) Shaping, convergence, folding, 2, 1, 2, 3
IV. = 32 4. Squirrel
elevation, clockwise 2, 1, 2, 3
(B) Convergence, elevation, folding, I II III IV
shaping, clockwise
(A) 3 1 4 2
(C) Shaping, folding, elevation,
(B) 2 1 3 4
convergence, clockwise
(D) Convergence, shaping, elevation, (C) 1 4 2 3
folding, clockwise (D) 4 1 2 3
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37. Assertion (A) : Absorption of the 38. The Bohr effect represents an interaction
products of carbohydrates between
(A) O 2 equilibrium and Electron
and protein digestion are
dissociation of Hb
against a concentration
(B) O equilibrium and Proton
2
gradient, whereas the
dissociation of Hb
absorption of the products
(C) CO 2 equilibrium and Electron
of lipids are different. dissociation of Hb
(D) CO 2 equilibrium and Proton
Reason (R) : The end products of
dissociation of Hb
carbohydrates, proteins
39. Which one of the following chromosome
are absorbed into the
combinations is expected in an offspring
epithelial cells of intestine
obtained after selfing a plant having
is by active transport, AA BB CC DD homologous pairs ?
whereas the products of I. AA
lipids are by diffusion. II. BB
III. CC
In the context of the above two statements
IV. DD
which one of the following is correct
The correct sequence of the above is
(A) A is correct but R is wrong
(A) I, III, II and IV
(B) Both A and R are correct
(B) I, II, III and IV
(C) A is wrong but R is correct (C) I, IV, III and II
(D) Both A and R are wrong (D) I, III, IV and II
II} 11 A-09-02
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40. Match the most commonly detected blood- 42. Sex linked genes on the entire
group systems with probable number of
their alleles X-chromosome of Drosophila
List I List II melanogaster mapped and found to have
Blood Group Alleles
a length of
I. ABo 1 20+
II. MNSc 2 5 (A) 78 map units
+
III. P 3 30
(B) 68 map units
IV. Rh 4 4
I II III IV (C) 80 map units
(A) 2 1 4 3
(D) 82 map units
(B) 1 2 3 4
(C) 4 3 2 1
43. What are the two theories that are
(D) 3 4 2 1
combined in the synthetic theory of
41. Assertion (A) : Gene is a biological entity-
a heritable function evolution ?
detected by observing the
effect of a mutation. A gene (A) Darwin’s theory of natural selection
consists of all the DNA
and Lamarck’s theory of use and
sequences necessary to
produce a single peptide disuse
or RNA product.
(B) Mendel’s theory of heredity and
Reason (R) : The gene is single,
contiguous protein Heckel’s theory of ontogeny repeats
encoding stretch of DNA.
phylogeny
In the context of the above two statements,
(C) Darwin’s theory of natural selection
which one of the following is correct ?
(A) Both A and R are true and R is and Mendel’s theory of heredity
correct explanation of A
(B) Both A and R are true but R is not (D) Lamarck’s theory of use and disuse
the correct explanation of A
and Heckel’s theory of ontogeny
(C) A is true but R is false
(D) Both A and R are false repeats phylogeny
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44. Match the various types of isolating 45. Arrange following fossils in a row leading
mechanisms that prevent gene exchange from more like reptiles to more like
between population of related species of mammals
organisms I. Pelycosauria
List I List II II. Cyanodonta
III. Therapsida
I. Habitat Isolation 1. Populations are isolated by
IV. Mammalia
different and incompatible
(A) I, II, III and IV
behaviour
(B) II, III, I and IV
II. Seasonal Isolation 2. Restricted by differences in
(C) I, III, II and IV
structure of reproductive
(D) II, I, III and IV
organs
46. Assertion (A) : The finches beaks evolved
III. Ethological Isolation 3. Populations live in same
to be larger in times of food
regions but occupy different
shortage and smaller in
habitats
times of abundance.
IV. Mechanical Isolation 4. Population exist in the
Reason (R) : The food supply fluctuated
same region but are
through time according to
sexually mature at
weather.
different times
(A) Both A and R are true and R is the
I II III IV
correct explanation
(A) 1 3 4 2 (B) Both A and R are true, but R is not
(B) 3 4 1 2 the correct explanation
(C) 2 4 1 3 (C) A is true but R is false
(D) 3 2 1 4 (D) A is false but R is true
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Q.No. 47–50 lagging strand DNA fragments are primed
Read the passage below, and answer the by a short RNA primer molecules that are
questions that follow based on your subsequently erased and replaced with
understanding of the passage. DNA.
DNA replication takes place at a ‘Y’-shaped
DNA replication requires the cooperation of
structure called a replication fork. A self
many proteins. These include
correcting DNA polymerase enzyme
i. DNA polymerase and DNA primase to
catalyzes nucleotide polymerization in a
catalyze nucleotide triphosphate
5′ -to- 3′ direction, copying a DNA template
strand with remarkable fidelity. Since the two polymerization;
strands of a DNA double helix are ii. DNA helicases and single strand DNA-
antiparallel, this 5′ -to- 3′ DNA synthesis can
binding (SSB) proteins to help in opening
take place continuously on only one of the
up DNA helix so that it can be copied ;
strands at a replication fork (the leading
iii. DNA ligase and an enzyme that degrades
strand). On the lagging strand, short DNA
RNA primers to seal together the
fragments must be made by a ‘backstiching’
process. Because the self correcting DNA discontinuously synthesized lagging-
polymerase cannot start a new chain, these strand DNA fragments; and
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iv. DNA topoisomerases to help to relieve 49. Which one of the following four statements
is incorrect ?
helical winding and DNA tangling
(A) Leading strand is synthesized in
problems. Many of these proteins
5′ → 3′ direction
associate with each other at a replication (B) Lagging strand is synthesized by
fork to form a highly efficient ‘replication ‘backstitching’ process
(C) DNA polymerase can directly
machine’, through which the activities and
synthesize new chain of DNA
spatial movements of the individual
(D) Antiparallel strands of DNA are
components are coordinated. separated by helicases
47. Helical winding of DNA is removed by an 50. Which one of the following four statements
enzyme is correct ?
(A) DNA polymerase (A) Leading strands is synthesized in
(B) DNA primase fragments
(C) DNA helicase
(B) DNA fragments synthesis is initiated
(D) DNA topoisomerase
by DNA primer
48. Discontinually synthesized lagging strand (C) Leading and lagging strands are
DNA fragments are sealed by which one synthesized in different manner
of the following enzyme ?
because the DNA strands are
(A) RNA primase
antiparallel
(B) DNA ligase
(D) DNA polymerase alone coordinates
(C) Single strand binding proteins
replication of DNA process
(D) DNA polymerase
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Space for Rough Work
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Source: Telangana State Eligibility Test. Question paper published by Telangana State Eligibility Test.