KUET 2021 Question Paper M.Sc. Botany

FOR KUET EXAM PREPARATION

KUET 2021
Question Paper · M.Sc.
Botany
EXAM YEAR TYPE SUBJECT

KUET 2021 Question Paper M.Sc. Botany

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Sr. No. .............................

ENTRANCE TEST-2021
SCHOOL OF BIOLOGICAL SCIENCES

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BOTANY
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Question Booklet Series

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Total Questions : 60

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Time Allowed : 70 Minutes Roll No. :

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g l a Instructions for Candidates :
a
a Entrance Test Roll Number in the space provided at the top of this page of Question Booklet
1. Write your
and fill up the necessary information in the spaces provided on the OMR Answer Sheet.
2. OMR Answer Sheet has an Original Copy and a Candidate’s Copy glued beneath it at the top. While
making entries in the Original Copy, candidate should ensure that the two copies are aligned properly
so that the entries made in the Original Copy against each item are exactly copied in the Candidate’s
Copy.
3. All entries in the OMR Answer Sheet, including answers to questions, are to be recorded in the Original

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Copy only.

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4. Choose the correct / most appropriate response for each question among the options A, B, C and D and

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darken the circle of the appropriate response completely. The incomplete darkened circle is not correctly

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read by the OMR Scanner and no complaint to this effect shall be entertained.
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5. Use only blue/black ball point pen to darken the circle of correct/most appropriate response. In no case
gel/ink pen or pencil should be used.
6. Do not darken more than one circle of options for any question. A question with more than one darkened
response shall be considered wrong.
7. There will be ‘Negative Marking’ for wrong answers. Each wrong answer will lead to the deduction
of 0.25 marks from the total score of the candidate.
8. Only those candidates who would obtain positive score in Entrance Test Examination shall be eligible
for admission.

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9. Do not make any stray mark on the OMR sheet.

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10. Calculators and mobiles shall not be permitted inside the examination hall.

em12. OMR Answer Sheet must be handled carefully and it should not be folded
11.
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aor mutilated in which case it
Rough work, if any, should be done on the blank sheets provided with the question

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ag will not be evaluated.
13. Ensure that your OMR Answer Sheet has been signed by the Invigilator and the candidate himself/
herself.
14. At the end of the examination, hand over the OMR Answer Sheet to the invigilator who will first tear off
the original OMR sheet in presence of the Candidate and hand over the Candidate’s Copy to the candidate.
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1. A seed can be conceived to have evolved from a 7. When the activity of one gene is suppressed by
specialized megasporangium via: the activity of a non-allelic gene, it is known as:
(A) Reduction in the number of megaspores to (A) Pseudo-dominance
one (B) Hypostasis
(B) Sinking of megaspore towards the basal part (C) Epistasis
of megasporangium (D) Incomplete dominance
(C) Displacement of the vascular strand and its 8. Which term represents a pair of contrasting
division into two branches characters?
(D) All the above (A) Heterozygous
2. Which of the following is true for the gemmae in (B) Homozygous
Marchantia ? (C) Codominant genes
(A) Chlorophyllous structures (D) Allelomorphs
(B) Have two or more lateral notches 9. In the life cycle of a pine tree, the ovules are found
(C) Born on one celled stalk on the:
(D) All of the above (A) Needlelike leaves
3. In photosynthesis, the first step is: (B) Seed cones
(A) Photolysis of water (C) Pollen cones
(D) Roots, stems and leaves
(B) Production of NADPH2
10. The influence of parent material is:
(C) Photoexcitation of chlorophyll
(A) More evident on soils from glaciated region
(D) Synthesis of ATP
than comparable un-glaciated regions
4. The precursor for abscissic acid (ABA) is:
(B) More evident on soils from un-glaciated
(A) Zeatin region than comparable glaciated regions
(B) Lutein (C) Equally evident on soils from both glaciated
(C) Violaxanthin and un-glaciated regions
(D) Mevalonic acid (D) None of the above
5. What is the most precise function of the filiform 11. Histones, the very important constituent of
apparatus? chromatin, represent a family of:
(A) Guide the entry of pollen tube (A) Negatively charged protiens
(B) Recognize the suitable pollen at the stigma (B) Positively charged protiens
(C) Produce nectar (C) Both positively and negatively charged
(D) Stimulate division of generative cell protiens
6. Functional megaspore in an angiosperm develops (D) Carbohydrates not protiens
into: 12. Which of the following is true about Nostoc ?
(A) Endosperm (A) Akinetes are produced
(B) Embryo (B) Heterocysts are produced
(C) Embryo-sac (C) Trichomes are embedded in mucilage
(D) Ovule (D) All of the above

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18. In the host cell, replication of RNA virus takes
(A) Decrease the rate of a reaction by way of place in:
affecting the reaction equilibria (A) Nucleus
(B) Increase the rate of a reaction by way of (B) Cytoplasm
affecting the reaction equilibria
(C) Mitochondria
(C) Decrease the rate of a reaction but not
(D) Centriole
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affecting the reaction equilibria

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19. The phase of the cell cycle immediately preceding
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(D) Increase the rate of a reaction but not

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mitosis is called:
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affecting the reaction equilibria

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14. Which of the following is not true for the palmella (A) S phase
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stage in Chlamydomonas ? (B) G1 phase
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(A) It is a means of sexual reproduction (C) G2 phase
(B) It is a means of asexual reproduction (D) M phase
(C) A large number of near naked cells devoid 20. Protein molecules that differ in a few amino acid
of flagella lie inside a mucilage mass residues are called:
(D) The stage develops in response to (A) Isoforms
unfavourable water conditions and toxic
(B) Isotypes
chemicals
(C) Glycoforms
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15. Introns are segments of DNA that:
(A) Are expressed as genes o
21..c Which of the following is mismatched ?
(D)

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(B) Regulate mRNA production
(C) Code for long sequences of amino acids
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(D) Are inserted between expressed genes (B) Ovule – megagametophyte
16. Which of the following is not true about the Sieve (C) Seed – immature sporophyte
cells and Sieve tube elements ? (D) Pollen tube – spores
(A) They are morphologically almost equivalent 22. Which of these are found in all viruses?
(B) They are alike in fundamental structure and (A) Envelope, nucleic acid, capsid
function
(B) DNA, RNA, proteins
(C) They are quite similar in perforation pattern

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(C) Proteins and a nucleic acid

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of their wall

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(D) Proteins, nucleic acids, carbohydrates and

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(D) They differ in perforation pattern of their

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lipids.

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wall

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23. During bacterial conjugation, as a result of cross
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17. Which of the following Botanical Gardens is not

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between F+ and F- :
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correctly matched with its place ?

a (A) Royal Botanical Garden - Kew (A) F- becomes F+ and F+ remains F+
(B) Pisa Botanical Garden - Italy (B) F- becomes F+ and F+ becomes F-
(C) Missouri Botanical Garden - USA (C) F+ becomes F- and F- remains F-
(D) Padua Botanical Garden - Germany (D) F+ remains F+ and F- remains F-

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24. The most conspicuous feature(s) of Equisetum 30. The pressure-flow model of phloem transport
include: states that:
(A) Jointed nature of stems (A) phloem sap always flows from the root to
(B) Intercalary growth the leaves
(B) water flow brings sucrose from a source to
(C) Small leaves around the nodes
a sink
(D) All the above
(C) water pressure creates a flow of water
25. A low KM value indicates:
(D) Both (B) and (C) are correct
(A) High substrate concentration
31. A plant requiring a dark period of at least 14 hours
(B) High product concentration will:
(C) Weak enzyme-substrate binding (A) flower if a 14-hour night is interrupted by a
(D) Strong enzyme-substrate binding flash of light
26. Which of the following pigments does not have (B) not flower if a 14-hour night is interrupted
oxygen in its molecule ? by a flash of light
(A) Chlorophyll a (C) not flower if the days are 14 hours long
(B) Chlorophyll b (D) Both (B) and (C) are correct
(C) Carotene 32. In which of the following processes molybdenum
has an important role ?
(D) Xanthophyll
(A) Nitrogen fixation
27. In photorespiration the molecule that is oxidized
(B) Flower induction
in mitochondria to release CO2 is:
(C) Chromosome contraction
(A) Glycine
(D) Carbon assimilation
(B) Glycolate
33. The cell at zero turger pressure shows:
(C) Glyoxylate (A) Evident plasmolysis
(D) Glyceric acid (B) Incipient plasmolysis
28. The enzymes of glycolysis are present in: (C) Limiting plasmolysis
(A) Outer mitochondrial membrane (D) Deplasmolysis
(B) Inner mitochondrial membrane 34. Which of the following concepts in APG-II
(C) Mitochondrial matrix received criticism, hence was abandoned in
(D) Cytosol APG-III ?
29. Which of the following is not a termination codon (A) Phylogentic principle and constructing taxa
in the universal genetic code ? on the basis of monophyly
(B) Reduction in the number of unplaced
(A) AUG
families
(B) UGA
(C) Bracketed keys
(C) UAG
(D) Construction of supraordinal monophyletic
(D) UAA clades

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35. Which of the following characterize the monocot ? 41. A chromosome with sub-terminal centromere is:
(A) Root phloem between arms of xylem (A) Acentric
(B) Root xylem and phloem in a ring (B) Acrocentric
(C) Stem vascular bundles in a distinct ring (C) Metacentric
(D) Stem and root vascular bundles with same
(D) Telocentric
arrangement

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42. Which of the following is the principal cereal of

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36. Between the bark and the wood in a woody stem,

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tropics and was introduced from Old World into

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there is a layer of meristem called:

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New World ?
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(A) Cork cambium

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(B) Vascular cambium

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(C) Procambium preceding bark
(D) Apical meristem (C) Rice
37. Which of the following types of plants are most (D) Tobacco
likely to be benefitted under increased CO2 43. Opium is obtained from:
concentration in a climate change context ? (A) Rauvolfia serpentina
(A) C3 plants to be benfitted more than C4 plants (B) Arnebia benthamii
(B) C4 plants to be benfitted more than C3 plants
(C) Saussurea costus
(C) Both C3 and C4 to be equally benefitted
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(D) Papaver somniferum

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(D) Neither C3 nor C4 plants to be benefitted at
44. The National Botanical Research Institute is

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all

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located in:
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38. A pollen grain is a:

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(A) a haploid structure
(B) a diploid structure (B) Lucknow
(C) first a diploid and then a haploid structure (C) Kolkata
(D) first a haploid and then a diploid structure (D) Bengaluru
39. A cross between homozygous recessive and 45. Which of these is mismatched?
heterozygous plant is: (A) Polar nuclei – plumule
(A) Monohybrid cross (B) Ovary – fruit

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(B) Dihybrid cross
(C) Egg and sperm - zygote
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(C) Test cross

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(D) Ovule – seed

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(D) Back cross

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46. The megasporocyte and the microsporocyte:

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40. When both alleles express their effect on being

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(A) Both produce

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present together, the phenomenon is called:

a (A) Dominance (B) Both divide
(B) Codominance (C) Both divide mitotically
(C) Pseudodominance (D) Produce pollen grains and embryo sacs,
(D) Aphidominance respectively

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47. Which of the following is a well-known 52. Which of the following is not a strategy for ex-
greenhouse gas ? situ conservation ?
(A) N2O (A) Botanical garden
(B) NO
(B) Biosphere reserve
(C) NO2
(C) Seed bank
(D) None of the above
48. The interaction in which one species is harmed (D) Cryopreservation
and the other is unaffected is called: 53. Mycorrhizas are critically important for host
(A) Amensalism plants under:
(B) Commensalism (A) Low phosphorus conditions in soil
(C) Parasitism (B) High phosphorus conditions in soil
(D) Predation (C) Aquatic environments
49. Which of the following is the best example of a
(D) None of the above conditions
perfect nutrient cycle ?
54. A specimen which is a duplicate of the holotype,
(A) Nitrogen cycle
collected from the same place, at the same time
(B) Phosphorus cycle
and by the same person is called the:
(C) Carbon cycle
(D) Sulphur cycle (A) Lactotype
50. Which of the following statements is true ? (B) Neotype
(A) Grazing food chains are dominant in (C) Isotype
terrestrial ecosystems while the detritus (D) Topotype
based ones are so in aquatic ecosystems
55. The technique used to make huge number of copies
(B) Detritus based food chains are dominant in
of a specific DNA segment is:
terrestrial ecosystems while the grazing ones
are so in aquatic ecosystems (A) Ligase chain reaction
(C) Detritus based and grazing food chains are (B) Polymerase chain reaction
equally dominant in terrestrial ecosystems (C) Transcription
as well as aquatic ecosystems (D) Translation
(D) None of the above
56. Chipko movement was launched for the protection
51. Which of the following names of Taxonomic Keys
of:
is not correctly matched ?
(A) Wetlands
(A) Yoked – Indented
(B) Bracketed – Parallel (B) Forests
(C) Serial – Numbered (C) Grasslands
(D) Indented – Bracketed (D) Esturies

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57. The surface of the gill, on both sides, in Agaricus 59. According to Vavilov, the origin of cultivated
is covered with a fertile layer called: wheat is:
(A) Hymenium (A) Africa
(B) Basidium (B) South America
(C) Cystidium (C) Australia
(D) Closteridium (D) Ancient Mediterranean including Southwest

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58. The casparian strip affects: Asia

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(A) how water and minerals move into the 60. The characteristic feature(s) of Rhyniophytes

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vascular cylinder include:

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(B) vascular tissue composition (A) Sporangia at the tips of branches

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(C) how organic nutrients move into the vascular (B) Green stems
tissue (C) Both (A) and (B)
(D) how soil particles function (D) Neither (A) nor (B)

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ROUGH WORK

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