q

DU MPhil PhD in Botany
Topic: BOT MPHIL S2
1) Which one of the following statements is INCORRECT about Ginkgo?
[Question ID = 4476]

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1. Leaves show dichotomous venation pattern
[Option ID = 17898]
2. Dwarf shoots are pycnoxylic
[Option ID = 17899]
3. Spermatozoids are motile

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[Option ID = 17900]
4. Secondary xylem tracheids show biseriate bordered pits
[Option ID = 17901]
Correct Answer :
Dwarf shoots are pycnoxylic

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[Option ID = 17899]
2) Cell wall of Archaebacteria is made up of
[Question ID = 4477]
1. Nacetylglucosamine and Nacetyltalosaminuronic acid that are linked by 1,3glycosidic bonds [Option ID = 17902]
2. Nacetylglucosamine and Nacetyltalosaminuronic acid that are linked by 1,4glycosidic bonds [Option ID = 17903]

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3. Nacetylglucosamine and Nacetylmuramic acid that are linked by 1,3glycosidic bonds [Option ID = 17904]
4. Nacetylglucosamine and Nacetylmuramic acid that are linked by 1,4glycosidic bonds. [Option ID = 17905]
Correct Answer :
Nacetylglucosamine and Nacetyltalosaminuronic acid that are linked by 1,3glycosidic bonds [Option ID = 17902]
3) The outer membrane of cell wall in Gramnegative bacteria is attached to the underlying peptidoglycan layer by

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[Question ID = 4478]
1. Braun's Lipoprotein [Option ID = 17906]
2. Phospholipids [Option ID = 17907]
3. Proteins [Option ID = 17908]
4. Lipopolysaccharide [Option ID = 17909]

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Correct Answer :
Braun's Lipoprotein [Option ID = 17906]
4) The sum of areas of all leaves per unit area of ground refers to as
[Question ID = 4479]
1. Specific leaf area [Option ID = 17910]

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2. Specific leaf mass [Option ID = 17911]
3. Leaf area index [Option ID = 17912]
4. Average leaf area [Option ID = 17913]
Correct Answer :
Leaf area index [Option ID = 17912]

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5) The flame photometric method determines the following set of elements
[Question ID = 4480]
1. Sodium, potassium, lithium and phosphorus [Option ID = 17914]
2. Sodium, potassium, lithium and calcium [Option ID = 17915]
3. Sodium, potassium, lithium and magnesium [Option ID = 17916]

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4. Sodium, potassium, calcium and magnesium [Option ID = 17917]
Correct Answer :
Sodium, potassium, lithium and calcium [Option ID = 17915]
6) Which of the following databases is a repository of (1) large scale genomic variants, and (2) genomewide association
studies, respectively?

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[Question ID = 4481]
1. (1):POPSET; (2): dbVar [Option ID = 17918]
2. (1):dbVar; (2): dbGaP [Option ID = 17919]
3. (1):GSS; (2): dbEST [Option ID = 17920]
4. (1):POPSET; (2): GSS [Option ID = 17921]

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Correct Answer :
(1):dbVar; (2): dbGaP [Option ID = 17919]
7) Spot trains in a 2D gel can be reduced by conducting IEF (isoelectric focusing) at
[Question ID = 4482]
1. 30 C

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0
[Option ID = 17922]
2. 40 C
0
[Option ID = 17923]

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3. 20 C
0
[Option ID = 17924]
4. 35 C
0

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[Option ID = 17925]
Correct Answer :
20 C
0
[Option ID = 17924]

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8) Which among the following is an INCORRECT statement about SHOOTMERISTEMLESS gene?
[Question ID = 4483]
1. It is a member of class 1 KNOX gene family [Option ID = 17926]
2. It is expressed throughout the meristem [Option ID = 17927]
3. It codes for a small polypeptide that moves between cells [Option ID = 17928]

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4. It is downregulated in organ primordia [Option ID = 17929]
Correct Answer :
It codes for a small polypeptide that moves between cells [Option ID = 17928]
9) Which one of the following involves selective removal of cells in order to specifically find out the position dependent,
cellcell interaction processes that require signals from neighbouring cells?

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[Question ID = 4484]
1. Ablation studies [Option ID = 17930]
2. The split luciferse complementation assay [Option ID = 17931]
3. Yeast twohybrid assay [Option ID = 17932]
4. Fluorescent insitu hybridization [Option ID = 17933]

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Correct Answer :
Ablation studies [Option ID = 17930]
10) The diamond shaped axial parenchyma with lateral extensions present on one side of the vessels is known as
[Question ID = 4485]
1. lozengealiform [Option ID = 17934]

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2. paratracheal [Option ID = 17935]
3. vasicentric [Option ID = 17936]
4. confluent [Option ID = 17937]
Correct Answer :
lozengealiform [Option ID = 17934]

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11) Which one of the following is used as a source of energy by chemosynthetic autotrophs for synthesis of organic
molecules?
[Question ID = 4486]
1. Hydrogen peroxide [Option ID = 17938]
2. Hydrogen sulfide [Option ID = 17939]

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3. dimethyl sulfide [Option ID = 17940]
4. Arsenic sulfide [Option ID = 17941]
Correct Answer :
Hydrogen sulfide [Option ID = 17939]
12) Phosphorus can be estimated by

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[Question ID = 4487]
1. Ammonium molybdate blue method [Option ID = 17942]
2. Ammonium nitrate method [Option ID = 17943]
3. Stannous chloride method [Option ID = 17944]
4. Silver nitrate [Option ID = 17945]

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Correct Answer :
Ammonium molybdate blue method [Option ID = 17942]
13) The Hungarian Scientist, Lajos Winkler in 1888, developed a method for estimation of
[Question ID = 4488]
1. Chloride [Option ID = 17946]

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2. Dissolved O
2 [Option ID = 17947]
3. Free CO
2 [Option ID = 17948]
4. Hardness of water [Option ID = 17949]

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Correct Answer :
Dissolved O
2 [Option ID = 17947]

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14) Addition of which group to the Nterminus of a protein is the most common form of protein modification?
[Question ID = 4489]

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1. Methylation [Option ID = 17950]
2. Adenylation [Option ID = 17951]
3. Acetylation [Option ID = 17952]
4. Phosphorylation [Option ID = 17953]
Correct Answer :

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Acetylation [Option ID = 17952]
15) In a mass spectrometer, the ions are sorted out by
[Question ID = 4490]
1. accelerating them through electric field only [Option ID = 17954]
2. accelerating them through magnetic field only [Option ID = 17955]

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3. accelerating them through both electric and magnetic fields [Option ID = 17956]
4. applying a high voltage [Option ID = 17957]
Correct Answer :
accelerating them through both electric and magnetic fields [Option ID = 17956]
16) A RNA:DNA hybrid in which RNA overhangs are present at both 5' and 3' ends can be made blunt ended with the help

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of
[Question ID = 4491]
1. Reverse Transcriptase [Option ID = 17958]
2. Mung bean nuclease [Option ID = 17959]
3. Klenow Polymerase [Option ID = 17960]

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4. T7 RNA Polymerase [Option ID = 17961]
Correct Answer :
Mung bean nuclease [Option ID = 17959]
17) The Importance Value Index (IVI) of a woody community is calculated using the formula:
[Question ID = 4492]

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1. Relative frequency + Relative abundance + Relative Density [Option ID = 17962]
2. Frequency + Abundance + Density [Option ID = 17963]
3. Frequency + Abundance + Basal area [Option ID = 17964]
4. Relative frequency + Relative abundance + Relative Basal Area [Option ID = 17965]
Correct Answer :

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Relative frequency + Relative abundance + Relative Basal Area [Option ID = 17965]
18) The index to find species similarities is
[Question ID = 4493]
1. ShannonWiener [Option ID = 17966]
2. Simpson's [Option ID = 17967]

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3. Sorensen's [Option ID = 17968]
4. Pielou's [Option ID = 17969]
Correct Answer :
Sorensen's [Option ID = 17968]
19) A specimen derived from a nonoriginal collection that is selected to serve as the type is called

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[Question ID = 4494]
1. Holotype [Option ID = 17970]
2. Lectotype [Option ID = 17971]
3. Paratype [Option ID = 17972]
4. Neotype [Option ID = 17973]

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Correct Answer :
Neotype [Option ID = 17973]
20) A name spelled exactly like a validly published name for a taxon of the same rank based on different type is called
[Question ID = 4495]
1. Autonym [Option ID = 17974]

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2. Basionym [Option ID = 17975]
3. Homonym [Option ID = 17976]
4. Synonym [Option ID = 17977]
Correct Answer :
Homonym [Option ID = 17976]

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21) The slope and intercept obtained from (1/Rate) against (1/Substrate concentration) of an enzyme catalyzed reaction
are 600 and 2x10 , respectively. The MichaelisMenten constant of the enzyme in this reaction is
5
[Question ID = 4496]

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1. 12x10

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7 [Option ID = 17978]
2. 3.33x10
2 [Option ID = 17979]
3. 1.5x10
3 [Option ID = 17980]

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4. 3x10
3 [Option ID = 17981]
Correct Answer :
3x10
3 [Option ID = 17981]

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22) Tyrosine contains an aromatic R group and has pk =2.2, pk
1
=9.1 and pk
2
R=10.9. Its calculated isoelectric point (pI) is

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[Question ID = 4497]
1. 7.4 [Option ID = 17982]
2. 10 [Option ID = 17983]
3. 5.65 [Option ID = 17984]
4. 6.55 [Option ID = 17985]

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Correct Answer :
5.65 [Option ID = 17984]
23) Which one of the following statements is INCORRECT for Two Component Signaling (TCS)?
[Question ID = 4498]
1. Osmosensing in E. coli operates via a canonical TCS [Option ID = 17986]

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2. CRE1 was the first TCS system to be discovered in plants [Option ID = 17987]
3. Hybrid type TCS are operational in plants [Option ID = 17988]
4. Chemosensing in E. coli involves multiple response regulators [Option ID = 17989]
Correct Answer :
CRE1 was the first TCS system to be discovered in plants [Option ID = 17987]

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24) Which one of the following statements is FALSE for RILs (Recombinant Inbred Lines)
[Question ID = 4499]
1. RILs comprise individuals that are homozygous at most loci [Option ID = 17990]
2. Only loci polymorphic between the two parents can be mapped using RILs [Option ID = 17991]
3. Dominant markers will segregate in a 3:1 ratio in the RIL population [Option ID = 17992]

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4. Developing RILs is more time consuming than generating F populations
2
[Option ID = 17993]
Correct Answer :
Dominant markers will segregate in a 3:1 ratio in the RIL population [Option ID = 17992]

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25) Which one of the following statements is INCORRECT for the E. coli lactose operon?
[Question ID = 4500]
1. cAMP concentration in the cell is affected by amount of glucose. [Option ID = 17994]
2. CAPcAMP complex is essential for the induction of the operon. [Option ID = 17995]
3. CAPcAMP complex binds to the operater of lac operon. [Option ID = 17996]

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4. The operon is induced in presence of lactose only when glucose is absent. [Option ID = 17997]
Correct Answer :
CAPcAMP complex binds to the operater of lac operon. [Option ID = 17996]
26) Which of the following statement is NOT true about SSR markers?
[Question ID = 4501]

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1. They are tandemly repeated sequences. [Option ID = 17998]
2. They are analyzed using primers complementary to their hyper variable flanking regions. [Option ID = 17999]
3. They are codominant. [Option ID = 18000]
4. SSRs are present in both coding and noncoding regions of the genome. [Option ID = 18001]
Correct Answer :

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They are analyzed using primers complementary to their hyper variable flanking regions. [Option ID = 17999]
27) Which one of the following statements is INCORRECT about pseudogenes?
[Question ID = 4502]
1. They are derived from mRNA sequences by reverse transcription. [Option ID = 18002]
2. They arise due to accumulation of mutations in functional genes. [Option ID = 18003]

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3. They appear as intronless versions of another existing gene. [Option ID = 18004]
4. They possess poly A tract at the 3' end. [Option ID = 18005]
Correct Answer :
They arise due to accumulation of mutations in functional genes. [Option ID = 18003]
28) Which one of the following is a monotypic family?

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[Question ID = 4503]
1. Nymphaeaceae [Option ID = 18006]
2. Aristolochiaceae [Option ID = 18007]
3. Amborellaceae [Option ID = 18008]
4. Winteraceae [Option ID = 18009]

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Correct Answer :
Amborellaceae [Option ID = 18008]
29) `Jaculators' are a characteristic feature of
[Question ID = 4504]
1. Apocynaceae [Option ID = 18010]

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2. Acanthaceae [Option ID = 18011]
3. Asteraceae [Option ID = 18012]
4. Myrtaceae [Option ID = 18013]
Correct Answer :
Acanthaceae [Option ID = 18011]

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30) Stigmatic exudate produced on wet stigma is NOT responsible for
[Question ID = 4505]
1. pollenpistil interaction [Option ID = 18014]
2. excessive evaporation and wetting [Option ID = 18015]
3. protection against pathogens and insects [Option ID = 18016]

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4. the formation of pellicle components [Option ID = 18017]
Correct Answer :
the formation of pellicle components [Option ID = 18017]
31) Which one of the following events is accompanied by pollen tube entry inside the synergid cell?
[Question ID = 4506]

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1. Degeneration of one of the synergids [Option ID = 18018]
2. Disruption of plasma membrane [Option ID = 18019]
3. Impaired DnaJ chaperonin expression in mitochondria [Option ID = 18020]
4. Accumulation of Ca in the synergid
++

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[Option ID = 18021]
Correct Answer :
Impaired DnaJ chaperonin expression in mitochondria [Option ID = 18020]
32) Polar distribution of Ca++ in the pollen tube tip can be disrupted by
[Question ID = 4507]

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1. Fluphenazine [Option ID = 18022]
2. Gadolinium [Option ID = 18023]
3. FURA 2 [Option ID = 18024]
4. Quin 2 [Option ID = 18025]
Correct Answer :

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Gadolinium [Option ID = 18023]
33) Match the name of genes mentioned in Column I with their source in Column II:


Column I

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Column II
A. gfp
I. Bacillus thuringiensis
B. bar
II. Escherichia coli

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C. gus
III. Streptomyces hygroscopicus
D. btgene
IV. Aequorea victoria

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Choose the correct answer from the options given below:
[Question ID = 4508]
1. A III, B IV, C II, D I
[Option ID = 18026]

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2. A II, B III, C IV, D I
[Option ID = 18027]
3. A IV, B III, C II, D I
[Option ID = 18028]
4. A IV, B I, C II, D III

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[Option ID = 18029]
Correct Answer :
A II, B III, C IV, D I
[Option ID = 18027]

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34) Select the appropriate group of markers that can be used for evaluating the genetic fidelity of plants?

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[Question ID = 4509]
1. SCoT, RAPD, ISSR [Option ID = 18030]
2. RFLP, HPLC, SS [Option ID = 18031]
3. SCoT, SRAP, HPTLC [Option ID = 18032]
4. SSR, RAPD, TLC [Option ID = 18033]

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Correct Answer :
SCoT, RAPD, ISSR [Option ID = 18030]
35) Which one of the following enzymatic antioxidants is localized in the endoplasmic reticulum?
[Question ID = 4510]
1. Superoxide dismutase [Option ID = 18034]

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2. Catalase [Option ID = 18035]
3. Guaiacol peroxidase [Option ID = 18036]
4. Glutathione reductase [Option ID = 18037]
Correct Answer :
Guaiacol peroxidase [Option ID = 18036]

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36) Which one of the following is NOT required for natural selection?
[Question ID = 4511]
1. Genetic Drift [Option ID = 18038]
2. Differential survival and reproduction [Option ID = 18039]
3. Heritability of trait under selection [Option ID = 18040]

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4. Variation [Option ID = 18041]
Correct Answer :
Genetic Drift [Option ID = 18038]
37) Which of the following is the correct order of geologic time intervals from the most ancient to the most recent?
[Question ID = 4512]

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1. Paleozoic, Cenozoic, Mesozoic [Option ID = 18042]
2. Hadean, Archaen, Proterozoic [Option ID = 18043]
3. Silurian, Ordovician, Cambrian [Option ID = 18044]
4. Silurian, Carboniferous, Devonian [Option ID = 18045]
Correct Answer :

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Hadean, Archaen, Proterozoic [Option ID = 18043]
38) Which one of the following statements is NOT true for Maturation Promoting Factor (MPF)?
[Question ID = 4513]
1. MPF activity drives somatic cells into mitosis. [Option ID = 18046]
2. MPF activity dephosphorylates condensin and nucleoporin. [Option ID = 18047]

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3. MPF activity drives oocytes into meiosis. [Option ID = 18048]
4. MPF is a heterodimer containing CDK1 and cyclin B. [Option ID = 18049]
Correct Answer :
MPF activity dephosphorylates condensin and nucleoporin. [Option ID = 18047]
39) During expansion of a cell, which of the following bonds in cell walls are affected by expansin proteins?

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[Question ID = 4514]
1. Covalent bonds [Option ID = 18050]
2. Electrovalent bonds [Option ID = 18051]
3. Hydrogen bonds [Option ID = 18052]
4. van der Waals forces [Option ID = 18053]

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Correct Answer :
Hydrogen bonds [Option ID = 18052]
40) The technique, Fluorescence (F?rster) Resonance Energy Transfer (FRET), is used to study
[Question ID = 4515]
1. lateral mobility of lipids/proteins within membranes. [Option ID = 18054]

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2. existence of lipid rafts within membranes. [Option ID = 18055]
3. presence of supramolecular complexes within membranes. [Option ID = 18056]
4. domain structure of lipids within membranes. [Option ID = 18057]
Correct Answer :
presence of supramolecular complexes within membranes. [Option ID = 18056]

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41) What is the approximate length of linker DNA present between two nucleosomes, if it has (i) 20 base pairs or (ii) 60
base pairs?
[Question ID = 4516]
1. (i) 68 ? or (ii) 204 ? [Option ID = 18058]

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2. (i) 68 nm or (ii) 204 nm [Option ID = 18059]

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3. (i) 6.8 ? or (ii) 20.4 ? [Option ID = 18060]
4. (i) 6.8 m or (ii) 20.4 m [Option ID = 18061]
Correct Answer :
(i) 68 ? or (ii) 204 ? [Option ID = 18058]
42) Golgi stain, advent and use of which resulted in universal acceptance of Cell theory, makes use of

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[Question ID = 4517]
1. Copper [Option ID = 18062]
2. Gold [Option ID = 18063]
3. Silver [Option ID = 18064]
4. Iron [Option ID = 18065]

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Correct Answer :
Silver [Option ID = 18064]
43) Mutations in genes encoding Ecadherins in Pectinophora gossypiella led to resistance against Bt cotton Bollgard 1
producing the endotoxin
[Question ID = 4518]

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1. Cry 1Ac
[Option ID = 18066]
2. Cry 1Ab
[Option ID = 18067]
3. Cry 2Ac

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[Option ID = 18068]
4. Cry 2Ab
[Option ID = 18069]
Correct Answer :
Cry 1Ac

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[Option ID = 18066]
44) Which one of the following techniques is NOT a part of Integrated Pest Management?
[Question ID = 4519]
1. Pheromone mediated mating disruption [Option ID = 18070]
2. "Push and Pull" strategy [Option ID = 18071]

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3. Biological control [Option ID = 18072]
4. Sterile Insect Production [Option ID = 18073]
Correct Answer :
Sterile Insect Production [Option ID = 18073]
45) The association of Crotalaria sativa?Utethesia ornatrixNephila clavipes is a representation of

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[Question ID = 4520]
1. insects feeding on a legume
[Option ID = 18074]
2. vectors of viral diseases of a legume crop
[Option ID = 18075]

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3. host plantpestpredator interaction
[Option ID = 18076]
4. host plantinsectpredator interaction
[Option ID = 18077]
Correct Answer :

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host plantinsectpredator interaction
[Option ID = 18077]
46) The Crelox recombination system is a characteristic feature of
[Question ID = 4521]
1. Sulfolobus islandicus rodshaped virus 1

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[Option ID = 18078]
2. Escherichia virus P1
[Option ID = 18079]

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3. Cryphonectria hypovirus 1
[Option ID = 18080]

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4. Acanthamoeba polyphaga mimivirus
[Option ID = 18081]
Correct Answer :
Escherichia virus P1
[Option ID = 18079]

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47) Which singlestranded DNA virus associated with epidemics of tomato leaf curl disease is documented as a natural
recombinant molecule?
[Question ID = 4522]
1. Tomato yellow leaf curl virusIsrael [Option ID = 18082]
2. Tomato leaf curl Sardinia virus [Option ID = 18083]

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3. Tomato leaf curl New Delhi virus [Option ID = 18084]
4. Tomato leaf curl Malaga virus [Option ID = 18085]
Correct Answer :
Tomato leaf curl Malaga virus [Option ID = 18085]
48) Resistance being inherited as an autosomal recessive trait, the development of crossresistance in targeted cotton pests

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to Bt delta endotoxins incorporated into artificial diets can best be evaluated from estimates of
[Question ID = 4523]
1. LC
01 [Option ID = 18086]
2. LC

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50 [Option ID = 18087]
3. LC
90 [Option ID = 18088]
4. LC
100 [Option ID = 18089]

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Correct Answer :
LC
50 [Option ID = 18087]
49) Which of the following alga is a commercial source of carotene?
[Question ID = 4524]

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1. Oscillatoria sp.
[Option ID = 18090]
2. Monodopsis subterranean
[Option ID = 18091]
3. Dunaliella salina

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[Option ID = 18092]
4. Scenedesmus obliqus
[Option ID = 18093]
Correct Answer :
Dunaliella salina

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[Option ID = 18092]
50) The phenomenon of "red snow" is exhibited in polar regions by which of the Chlamydomonas species?
[Question ID = 4525]
1. C. nivalis
[Option ID = 18094]

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2. C. coccifera
[Option ID = 18095]
3. C. media
[Option ID = 18096]
4. C. reticulata

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[Option ID = 18097]
Correct Answer :
C. nivalis
[Option ID = 18094]

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