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Saturday, December 10, 2016

Panjab University OCET M.Sc Botany 2012 Question Paper

OCET-2012 - Punjab University Question Paper
Question Booklet Series : A
Important : Please consult your Admit Card / Roll No. Slip before filling your Roll Number on the Test Booklet and Answer Sheet.
Roll No.
Sr. No. :
Answer Sheet Serial No.
Signature of the Candidate :
Subject : M.Sc. (Hons. School/2 Year Course)-Botany
Time : 90 minutes Number of Questions : 75 Maximum Marks : 75
DO NOT OPEN THE SEAL ON THE BOOKLET UNTIL ASKED TO DO SO
INSTRUCTIONS
1. Write your Roll No. on the Question Booklet and also on the OMR Answer Sheet in the space provided and nowhere else.
2. Enter the Subject and Series Code of Question Booklet on the OMR Answer Sheet. Darken the corresponding bubbles with Black Ball Point / Black Gel pen.
3. Do not make any identification mark on the Answer Sheet or Question Booklet.
4. To open the Question Booklet remove the paper seal(s) gently when asked to do so.
5. Please check that this Question Booklet contains 75 questions. In case of any discrepancy, inform the Assistant Superintendent within 10 minutes of the start of test.
6. Each question has four alternative answers (A, B, C, D) of which only one is correct. For each question, darken only one bubble (A or B or C or D), whichever you think is the correct answer, on the Answer Sheet with Black Ball Point / Black Gel pen.
7. If you do not want to answer a question, leave all the bubbles corresponding to that question blank in the Answer Sheet. No marks will be deducted in such cases.
8. Darken the bubbles in the OMR Answer Sheet according to the Serial No. of the questions given in the Question Booklet.
9. Negative marking will be adopted for evaluation i.e., 1/4th of the marks of the question will be deducted for each wrong answer. A wrong answer means incorrect answer or wrong filling of bubble.
10. For calculations, use of simple log tables is permitted. Borrowing of log tables and any other material is not allowed.
11. For rough work only the sheets marked “Rough Work” at the end of the Question Booklet be used.
12. The Answer Sheet is designed for computer evaluation. Therefore, if you do not follow the instructions given on the Answer Sheet, it may make evaluation by the computer difficult. Any resultant loss to the candidate on the above account, i.e., not following the instructions completely, shall be of the candidate only.
13. After the test, hand over the Question Booklet and the Answer Sheet to the Assistant Superintendent on duty.
14. In no case the Answer Sheet, the Question Booklet, or its part or any material copied/noted from this Booklet is to be taken out of the examination hall. Any candidate found doing so, would be expelled from the examination.
15. A candidate who creates disturbance of any kind or changes his/her seat or is found in possession of any paper possibly of any assistance or found giving or receiving assistance or found using any other unfair means during the examination will be expelled from the examination by the Centre Superintendent/ Observer whose decision shall be final.
16. Telecommunication equipment such as pager, cellular phone, wireless, scanner, etc., is not
permitted inside the examination hall. Use of calculators is not allowed.

M.Sc. (Hons. School/2 Year Course)-Botany

1. Eukaryotic algae are included in
(A) Monera and Protista (B) Protista and Plantae
(C) Monera and Plantae (D) Monera, Protista and Plantae
2. Among three domains of life, Archaea are considered more close to
(A) Bacteria (B) Cyanobacteria
(C) Eubacteria (D) Eukarya
3. Red tide is related to
(A) Cyanobacteria (B) Red algae
(C) Dinoflagellates (D) Phaeophyceae
4. Which of the following has maximum population ?
(A) Herbivores (B) Parasites
(C) Carnivores (D) Decomposers
5. Which one includes seedless vascular plants ?
(A) Algae (B) Bryophytes
(C) Pteridophytes (D) Gymnosperms
6. Kelps are included in
(A) Chlorophyta (B) Cyanophyta
(C) Rhodophyta (D) Phaeophyta
7. Each nucleosome core particle contains a double stranded DNA fragment bound to the histone
octamer consisting of two molecules each of the following set of 4 histones :
(A) H1, H2A, H2B, H3 (B) H2A, H2B, H3, H4
(C) H1, H2A, H3, H4 (D) H1, H2, H3, H4
8. During DNA replication in prokaryotes, the RNA primers are removed by the 5'-3' exonuclease
activity of enzyme
(A) RNA polymerase (B) DNA polymerase I
(C) DNA polymerase II (D) DNA polymerase III
M.Sc. (Hons. School/2 Year Course)-Botany/A
M.Sc. (Hons. School/2 Year Course)-Botany/FRH-41372/A 4
9. Which is true for tryptophan operon in E.Coli ?
(A) The operator lies within the promoter region
(B) The promoter lies within the operator site
(C) The promoter is present next to the operator site
(D) The operator is present next to the promoter site
10. In yeast mitochondrial mRNAs, the codon UGA is
(A) A stop codon (B) A trp codon
(C) A start codon (D) A gln codon
11. In a cell, DNA is present only in
(A) Mitochondria & Golgi bodies (B) Chloroplast & Endoplasmic reticulum
(C) Mitochondria & Chloroplast (D) Chloroplast & Ribosome
12. 2n-2 represents
(A) Monosomic (B) Double monosomic
(C) Nullisomic (D) Nullitetrasomic
13. Softwood mostly consists of
(A) Vessels (B) Tracheids
(C) Xylem (D) Wood fibres
14. Which one is incorrect for catkin inflorescence ?
(A) Unbranched peduncle (B) Unisexual flowers
(C) Sessile flowers (D) Basipetally borne flowers
15. Highest chromosome number among plants is reported in
(A) Ophioglossum (B) Selaginella
(C) Equisetum (D) Salvinia
16. In plectostele, xylem and phloem are arranged as
(A) Alternate (B) Opposite
(C) Spiral (D) Mixed
M.Sc. (Hons. School/2 Year Course)-Botany/FRH-41372/A 5 [Turn over
17. In a charged tRNA, amino acid is covalently bound to
(A) C residue of ACC sequence at 3' end
(B) A residue of CCA sequence at 3' end
(C) C residue of ACC sequence at 5' end
(D) A residue of CCA sequence at 5' end
18. In which of the following, presence of glyoxysomes is expected ?
(A) Endosperm of wheat (B) Endosperm of castor
(C) Palisade cells of leaf (D) Root hairs
19. DNA can be located after gel electrophoresis by staining with
(A) Ethidium bromide (B) Pyronin Y
(C) Bromophenol blue (D) Sudan III
20. A polysome is a structure formed by
(A) Fusion of several subunits of ribosome
(B) Attachment of many ribosomes to endoplasmic reticulum
(C) Several ribosomes attached to a mRNA
(D) Several ribosomes attached together in a linear manner
21. Amino acids encoded by only one codon are
(A) Methionine and arginine (B) Methionine and tryptophan
(C) Methionine and threonine (D) Valine and glutamine
22. Crystals of calcium oxalate are found in the epidermal cells of
(A) Mimordica (B) Eichhornia
(C) Grasses (D) Maize
23. Number of microtubules in a bacterial flagellum is/are
(A) One (B) Two
(C) Nine (D) Eleven
24. Heterochromatin differs from euchromatin in being
(A) Transcriptionally inactive (B) Sensitive to temperature
(C) Unable to replicate (D) Unable to get stained
M.Sc. (Hons. School/2 Year Course)-Botany/FRH-41372/A 6
25. Which one is a floating symbiotic water fern ?
(A) Lemna (B) Equisetum
(C) Pteris (D) Azolla
26. More than two flagella are present on the reproductive cells of
(A) Dictyota (B) Chara
(C) Oedogonium (D) Volvox
27. In Haplontic life cycle in an alga, occurrence of meiosis is
(A) Gametic (B) Sporic
(C) Zygotic (D) Coenocytic
28. Agar Agar is extracted from members of class
(A) Phaeophyceae (B) Rhodophyceae
(C) Chlorophyceae (D) Dinophyceae
29. Irish femine was due to the attack of
(A) Claviceps purpurea (B) Pthyium debaryanum
(C) Ustilago tritici (D) Phytopthora infestans
30. Which cell organelle is common to a bacterial and a plant cell ?
(A) Chloroplast (B) Centriole
(C) Mitochondrion (D) Ribosome
31. The disappearance of green colour in the leaves due to lack of light is called
(A) Etiolation (B) Chlorosis
(C) Albinism (D) Evection
32. Which of the following is true for in situ conservation of biodiversity ?
(A) Establishment of botanical gardens (B) Cryopreservation of specimens
(C) Establishment of gene banks (D) Protection of national parks and sanctuaries
33. World Wetland Day is celebrated on
(A) February 2 (B) March 22
(C) April 22 (D) May 22
M.Sc. (Hons. School/2 Year Course)-Botany/FRH-41372/A 7 [Turn over
34. Tissue with dead cells having thick walls and narrow lumen is called
(A) Collenchyma (B) Parenchyma
(C) Sclerenchyma (D) Aerenchyma
35. There are two chloroplast endoplasmic membranes (CER) around the chloroplasts in members
of
(A) Rhodophyta (B) Bacillariophyta
(C) Dinophyta (D) Chlorophyta
36. Red rust of tea is caused by
(A) A fungus (B) An alga
(C) A virus (D) A bacterium
37. Richmond Lang effect is caused due to
(A) Auxins (B) Cytokinins
(C) Gibberellins (D) Ethylene
38. What is the site of vernalization ?
(A) Green Leaves (B) Permanent tissues
(C) Apical meristem (D) Young stem
39. One molecule of glucose in Calvin cycle is formed from
(A) 6 CO2 + 24 ATP + 12 NADPH (B) 6 CO2 + 18 ATP + 12 NADPH
(C) 6 CO2 + 18 ATP + 18 NADPH (D) 6 CO2 + 12 ATP + 6 NADPH
40. One among the following is a source of fibre and oil
(A) Gossypium herbaceous (B) Crotolaria juncea
(C) Sesbania species (D) Brassica compestris
41. Level of carbon dioxide in our atmosphere is approximately
(A) 285 ppm (B) 335 ppm
(C) 385 ppm (D) 435 ppm
42. Deficiency of one of the following causes brown heart disease
(A) Molybdenum (B) Boron
(C) Iron (D) Sodium
M.Sc. (Hons. School/2 Year Course)-Botany/FRH-41372/A 8
43. Most commonly used carbon source is
(A) Starch (B) Sucrose
(C) Maltose (D) Lactose
44. Which one of the following is not the feature of monocot stems ?
(A) Hollow stem (B) Sclerenchymatous hypodermis
(C) Numerous vascular bundles (D) More of metaxylem vessels
45. Dikaryophase among fungi is found in
(A) Phycomycetes (B) Slime moulds
(C) Deuteromycetes (D) Ascomycetes
46. Cork cells have deposition of
(A) Chitin (B) Suberin
(C) Cellulose (D) Pectin
47. Members of Marchantiales are usually
(A) Mat like (B) Cushion like
(C) Thalloid (D) Foliaceous
48. Which is incorrect match ?
(A) Sunflower—Cypsella (B) Trapa—Nut
(C) Grapes—Drupe (D) Gram—Pod
49. Sweet potato is
(A) Corm (B) Stem tuber
(C) Root tuber (D) Bulb
50. A prokaryotic autotrophic nitrogen fixing symbiont is present in
(A) Lathyrus (B) Cycas
(C) Cicer (D) Alnus
51. Which is National tree of India ?
(A) Tectona grandis (B) Ficus religiosa
(C) Dracena draco (D) Ficus benghalensis
M.Sc. (Hons. School/2 Year Course)-Botany/FRH-41372/A 9 [Turn over
52. The largest angiosperm is
(A) Eucalyptus regnans (B) Rafflesia arnoldi
(C) Sequoia sempervirens (D) Zamia pygmea
53. Ephemerals have life span of about
(A) 1-3 weeks (B) 4-6 weeks
(C) 7-9 weeks (D) 10-12 weeks
54. During photosynthesis, oxygen is released by
(A) Rhizobium (B) Klebsiella
(C) Oscillatoria (D) Azotobacter
55. The portion of the embryo axis between cotyledons and the plumule is called
(A) Epicotyl (B) Radicle
(C) Chalaza (D) Hypocotyl
56. Which is not an insectivorous plant ?
(A) Utricularia (B) Dionaea
(C) Passiflora (D) Drosera
57. Procambium also refers to
(A) Dermatogen (B) Periblem
(C) Protoderm (D) Plerome
58. Four sepals, four petals with tetradynamous condition and siliqua fruit is found in members of
the family
(A) Cucurbitaceae (B) Solanaceae
(C) Magnoliaceae (D) Brassicaceae
59. Botanical name of Brinjal is
(A) Capsicum annum (B) Solanum tuberosum
(C) Solanum melongena (D) Cucumis sativa
60. Blue mold is
(A) Penicillium (B) Rhizopus
(C) Mucor (D) Aspergillus
M.Sc. (Hons. School/2 Year Course)-Botany/FRH-41372/A 10
61. Choose the vascular heterosporus cryptogam
(A) Lycopodium (B) Selaginella
(C) Cedrus (D) Gnetum
62. In Dryopteris fern, number of neck canal cells is
(A) 2 (B) 3
(C) 4 (D) 5
63. One of the following is not a feature of Cycas
(A) Archegonia without neck canal cells
(B) Development of endosperm after fertilization
(C) Leafy sporophylls
(D) Formation of suspensor
64. The concept of generic drift was introduced by
(A) Swell Wright (B) G.G. Simpson
(C) Hardy Weinberg (D) Julian Huxley
65. Last electron acceptor in respiration is
(A) Oxygen (B) Hydrogen
(C) Carbon dioxide (D) NADH
66. Link between carbohydrate and fat metabolism is
(A) Pyruvic acid (B) Oxaloacetic acid
(C) Acetyl Co-enzyme A (D) Maleic acid
67. Plant with cladode is
(A) Opuntia (B) Oxalis
(C) Smilax (D) Asparagus
68. Rate of transpiration is dependent on
(A) Negative turgor pressure (B) Temperature
(C) Diffusion pressure deficit (D) Vapour pressure deficit
M.Sc. (Hons. School/2 Year Course)-Botany/FRH-41372/A 11 [Turn over
69. Which one of the amino acids has methyl group as side chain ?
(A) Alanine (B) Glycine
(C) Valine (D) Leucine
70. Stomata of CAM plants are
(A) Always open (B) Never open
(C) Open during day & close at night (D) Open during night & close during day
71. In a monohybrid cross, the ratio of homozygous to heterozygous individuals in F2 generation is
(A) 1 : 1 (B) 2 : 1
(C) 1 : 2 (D) 3 : 1
72. Which one of the following is wrongly matched ?
(A) Gibberellic acid—Leaf fall (B) IAA—Cell wall elongation
(C) Cytokinins—Cell division (D) Abscissic acid—Stomatal closure
73. Germplasm conservation in liquid nitrogen is
(A) Stratification (B) Cryopreservation
(C) Scarification (D) Dormancy
74. Maximum number of ATP is obtained from
(A) Glucose (B) Palmitic acid
(C) Maleic acid (D) Glycerol
75. Two or more species which occupy overlapping areas are
(A) Sympatric species (B) Allopatric species
(C) Sibling species (D) Polytypic species

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