Download DUET Master 2018 DU MSc Botany Question Paper With Answer Key

Download DUET (Delhi University Entrance Test conducted by the NTA) 2018 DU MSc Botany Question Paper With Solution Key

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DUET Last 10 Years 2011-2021 Question Papers With Answer Key || Delhi University Entrance Test conducted by the NTA

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DU MSc Botany

Topic:- DU_J18_MSC_BOT

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Which one of the following heterotrichous algae grows on rocks or bark? [Question ID = 2168]
1. Stigeoclonium [Option ID = 8669]
2. Trentepohlia [Option ID = 8672]
3. Cephaleuros [Option ID = 8671]
4. Fritschiella [Option ID = 8670]
Correct Answer :-
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Trentepohlia [Option ID = 8672]
Which one of the following statements is NOT correct? [Question ID = 2190]
1. Roots are absent in Psilotum. [Option ID = 8759]
2. In Equisetum, spores are spirally wrapped with elaters. [Option ID = 8758]
3. In Selaginella, rhizophores arise from angle meristems located at shoot branch points and produce roots at their distal ends. [Option ID = 8757]
4. Telome theory describes the classification of ferns. [Option ID = 8760]
Correct Answer :-

Telome theory describes the classification of ferns. [Option ID = 8760]
Which one of the following virgenes acts as a transcriptional activator of other virgenes? [Question ID = 2253]
1. vir D1 [Option ID = 9009]
2. vir G [Option ID = 9010]
3. vir D2 [Option ID = 9011]
4. vir E [Option ID = 9012]
Correct Answer :-

vir G [Option ID = 9010]
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Which one of the following features of Anthoceros indicates its algal ancestry? [Question ID = 2185]
1. Single chloroplast with a pyrenoid in each cell [Option ID = 8738]
2. Symbiotic association with Nostoc [Option ID = 8740]
3. Presence of slime pores [Option ID = 8739]
4. Presence of stomata in the capsule wall [Option ID = 8737]
Correct Answer :-

Single chloroplast with a pyrenoid in each cell [Option ID = 8738]
Which one of the following is NOT a list of millets? [Question ID = 2202]
1. Eleusine coracana, Pennisetum glaucum, Sorghum bicolor [Option ID = 8806]
2. Eleusine coracana, Pennisetum glaucum, Panicum milliaceum [Option ID = 8808]
3. Panicum milliaceum, Eleusine coracana, Sorghum bicolor [Option ID = 8807]
4. Panicum milliaceum, Eleusine coracana, Fagopyrum esculentum [Option ID = 8805]
Correct Answer :-

Panicum milliaceum, Eleusine coracana, Fagopyrum esculentum [Option ID = 8805]

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Which one of the following plants has anisocytic type of stomata? [Question ID = 2196]
1. Dianthus caryophyllus [Option ID = 8784]
2. Triticum aestivum [Option ID = 8783]
3. Arabidopsis thaliana [Option ID = 8781]
4. Allium cepa [Option ID = 8782]
Correct Answer :-
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Arabidopsis thaliana [Option ID = 8781]
The culturing of plant cells in liquid agitated medium is called [Question ID = 2251]
1. hydroponics [Option ID = 9001]
2. aquaponics [Option ID = 9004]
3. micropropagation [Option ID = 9002]
4. suspension culture [Option ID = 9003]
Correct Answer :-

suspension culture [Option ID = 9003]
A peroxisome-derived, dense core microbody with a unit membrane found near pore of hyphal septum in filamentous Ascomycota, is called [Question ID = 2181]
1. Woronin body [Option ID = 8723]
2. Spindle polar body [Option ID = 8721]
3. Chitosome [Option ID = 8724]
4. Spitzenkorper [Option ID = 8722]
Correct Answer :-

Woronin body [Option ID = 8723]
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Sympatric species are those that [Question ID = 2223]
1. flower at the same time of year. [Option ID = 8889]
2. have nearly identical life spans. [Option ID = 8892]
3. occupy the same ecological niche. [Option ID = 8890]
4. occupy the same geographic region. [Option ID = 8891]
Correct Answer :-

occupy the same geographic region. [Option ID = 8891]
S-allele variants involved in conferring self-incompatibility interact in a haplotype manner because [Question ID = 2235]
1. S-allele products are expressed only after the completion of meiosis in germline cells. [Option ID = 8938]
2. only then the allelic variability could be generated. [Option ID = 8940]
3. it is an essential requirement for the success of gametophytic self-incompatibility (GSI) system. [Option ID = 8939]
4. S-locus with male and female determinants is inherited as one unit. [Option ID = 8937]
Correct Answer :-

S-locus with male and female determinants is inherited as one unit. [Option ID = 8937]

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An erect, leafless stem bearing an inflorescence or flower at its apex is called [Question ID = 2228]
1. scape [Option ID = 8911]
2. acaulescent [Option ID = 8910]
3. caulescent [Option ID = 8909]
4. cauliflorous [Option ID = 8912]
Correct Answer :-
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scape [Option ID = 8911]
Select the correct sequence of events leading to opening of stomata. i. Decline in guard cell solutes ii. Lowering of osmotic potential of guard cells iii. Influx of potassium ions in guard cells iv. Water is sucked in by osmosis v. Efflux of Hydrogen ions from guard cells [Question ID = 2237]
1. iii, v, ii, iv [Option ID = 8947]
2. v, ii, iii, iv [Option ID = 8948]
3. i, ii, iii, iv [Option ID = 8945]
4. ii, iii, iv, v [Option ID = 8946]
Correct Answer :-

v, ii, iii, iv [Option ID = 8948]
Plants adapted to low light intensity generally have [Question ID = 2215]
1. extended root system. [Option ID = 8857]
2. CAM pathway of photosynthesis. [Option ID = 8860]
3. higher photosynthetic rate. [Option ID = 8858]
4. leaves modified to spines. [Option ID = 8859]
Correct Answer :-

higher photosynthetic rate. [Option ID = 8858]
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Ovules in Pinus and Rosa [Question ID = 2222]
1. were inherited from a recent common ancestor. [Option ID = 8885]
2. have the same function but were not inherited from a common ancestor. [Option ID = 8886]
3. are the result of evolutionary reversals. [Option ID = 8888]
4. are result of independent origins from different ancestors. [Option ID = 8887]
Correct Answer :-

were inherited from a recent common ancestor. [Option ID = 8885]
Identify the microorganism capable of inducing hairy root cultures for the synthesis of secondary metabolites: [Question ID = 2252]
1. Agrobacterium rhizogenes [Option ID = 9008]
2. Agrobacterium tumefaciens [Option ID = 9006]
3. Escherichia coli [Option ID = 9005]
4. Bacillus thuringiensis [Option ID = 9007]
Correct Answer :-

Agrobacterium rhizogenes [Option ID = 9008]

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"Kewda oil" is obtained from which one of the following plant species? [Question ID = 2203]
1. Lavandula angustifolia [Option ID = 8811]
2. Nardostachys jatamansi [Option ID = 8810]
3. Rosmarinus officinalis [Option ID = 8812]
4. Pandanus odoratissimus [Option ID = 8809]
Correct Answer :-
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Pandanus odoratissimus [Option ID = 8809]
The cyclic forms of sugars are formed by cyclization of [Question ID = 2175]
1. aldehydes and alcohols on same molecule to form intramolecular hemiacetal. [Option ID = 8699]
2. aldehyde and alcohol on different molecules to form hemiacetal. [Option ID = 8697]
3. ketones and aldehydes on same molecule to form intramolecular hemiketals. [Option ID = 8698]
4. ketones and aldehydes on same molecule to form hemiketal. [Option ID = 8700]
Correct Answer :-

aldehydes and alcohols on same molecule to form intramolecular hemiacetal. [Option ID = 8699]
Schizogenous glands are [Question ID = 2198]
1. internal secretory structures that are formed by dissolution of middle lamella of adjacent cells. [Option ID = 8789]
2. internal secretory structures that are formed by lysis of few cells. [Option ID = 8790]
3. external secretory structures that secrete salt in xerophytic plants. [Option ID = 8792]
4. external secretory structures that secrete mucilagous compounds in case of insectivorous plants. [Option ID = 8791]
Correct Answer :-

internal secretory structures that are formed by dissolution of middle lamella of adjacent cells. [Option ID = 8789]
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Hormogonia are [Question ID = 2167]
1. multicellular fragments of filaments which serve in vegetative reproduction of some blue-green algae. [Option ID = 8665]
2. multicellular fragments of filaments which serve in vegetative reproduction of some green algae. [Option ID = 8666]
3. a chain of spherical cells with thickened walls which serve in vegetative reproduction of some blue-green algae. [Option ID = 8667]
4. a chain of spherical cells with thickened walls which serve in vegetative reproduction of some green algae. [Option ID = 8668]
Correct Answer :-

multicellular fragments of filaments which serve in vegetative reproduction of some blue-green algae. [Option ID = 8665]
In gametophytic self-incompatibility (GSI) system [Question ID = 2234]
1. outcome of the interaction is determined by the genotype of pollen producing parent. [Option ID = 8933]
2. pollen grains are three-celled. [Option ID = 8935]
3. S-locus products are synthesized after completion of meiosis. [Option ID = 8934]
4. growth of the pollen tube is arrested in the stigmatic zone. [Option ID = 8936]
Correct Answer :-

S-locus products are synthesized after completion of meiosis. [Option ID = 8934]

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In a cloning experiment using E. coli, a DNA fragment was inserted in an EcoRI restriction site of a plasmid vector that contained the kan? and specr genes for resistance to the antibiotics kanamycin and spectinomycin, respectively. It was observed that all the positive clones (containing the DNA fragment of interest) grew on medium with kanamycin but not on media containing spectinomycin. Colonies, which grew on media with both antibiotics, did not contain the fragment of interest. Based on the above information, which of the following statement(s) could, independently or in combination, explain these observations? i. The speck gene contains a nonsense mutation. ii. The EcoRI site was located within the spec? gene. iii. The cloned fragment of interest produces a protein, which binds and inactivates the protein produced by the spec? gene. iv.The cloned DNA fragment was lethal to the cell. R [Question ID = 2254]
1. ii only [Option ID = 9016]
2. i and iv only [Option ID = 9015]
3. i only [Option ID = 9013]
4. ii and iii only [Option ID = 9014]
Correct Answer :-
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ii and iii only [Option ID = 9014]
Triticum dicoccum is commonly known as [Question ID = 2200]
1. Einkorn wheat [Option ID = 8797]
2. Durum wheat [Option ID = 8798]
3. Club wheat [Option ID = 8800]
4. Emmer wheat [Option ID = 8799]
Correct Answer :-

Emmer wheat [Option ID = 8799]
Four multiprotein complexes (I-IV) couple electron transport to proton pumping across the mitochondrial inner membrane. To which of these complexes do electrons from succinate flow? [Question ID = 21721
1. Complex II [Option ID = 8686]
2. Complex III [Option ID = 8687]
3. Complex I [Option ID = 8685]
4. Complex IV [Option ID = 8688]
Correct Answer :-

Complex II [Option ID = 8686]
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In the classical example of a dihybrid cross with a F2 phenotypic ratio of 9:7, which of the following statements is FALSE for the two genes involved? [Question ID = 2210]
1. The genes assort independently. [Option ID = 8840]
2. The genes are linked. [Option ID = 8839]
3. The genes exhibit epitstasis. [Option ID = 8837]
4. Alleles of each gene exhibit segregation. [Option ID = 8838]
Correct Answer :-

The genes are linked. [Option ID = 8839]
Photoperiodism was discovered by [Question ID = 2238]
1. Dutrochet and Overbeek [Option ID = 8949]
2. Bose and Blackman [Option ID = 8950]
3. Went and Paal [Option ID = 8952]
4. Garner and Allard [Option ID = 8951]
Correct Answer :-

Garner and Allard [Option ID = 8951]

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The bacterial DNA replication initiator protein is: [Question ID = 2258]
1. OriC [Option ID = 9029]
2. DnaB [Option ID = 9030]
3. dnaG [Option ID = 9032]
4. dnaA [Option ID = 9031]
Correct Answer :-
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dnaA [Option ID = 9031]
In Gymnosperms, the female gametophyte develops from the [Question ID = 2188]
1. Nucellus cells [Option ID = 8751]
2. Haploid megaspore mother cell [Option ID = 8752]
3. Haploid megaspore [Option ID = 8749]
4. Diploid megaspore [Option ID = 8750]
Correct Answer :-

Haploid megaspore [Option ID = 8749]
Hyaline cells of leaves and retort cells facilitate high water holding capacity of the gametophore in [Question ID = 2187]
1. Sphagnum [Option ID = 8748]
2. Funaria [Option ID = 8747]
3. Pellia [Option ID = 8745]
4. Porella [Option ID = 8746]
Correct Answer :-

Sphagnum [Option ID = 8748]
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Autotetraploids are often marked by the presence of [Question ID = 2207]
1. univalents at Meiosis 1. [Option ID = 8827]
2. multivalents at Meiosis 1. [Option ID = 8826]
3. bridge at Meiosis 1. [Option ID = 8828]
4. bivalents at Meiosis 1. [Option ID = 8825]
Correct Answer :-

multivalents at Meiosis 1. [Option ID = 8826]
Phytochrome protein is a [Question ID = 2241]
1. monomer [Option ID = 8961]
2. homodimer [Option ID = 8962]
3. heterodimer [Option ID = 8964]
4. tetramer [Option ID = 8963]
Correct Answer :-

homodimer [Option ID = 8962]

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In bacteria, the membrane invaginations that initiate DNA replication are [Question ID = 2165]
1. Nucleosomes [Option ID = 8659]
2. Mesosomes [Option ID = 8660]
3. Magnetosomes [Option ID = 8658]
4. Carboxysomes [Option ID = 8657]
Correct Answer :-
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Mesosomes [Option ID = 8660]
In higher plants, Isopentenyl pyrophosphate (IPP) is formed via two different biosynthetic pathways occurring in [Question ID = 2242]
1. mitochondria and chloroplast [Option ID = 8965]
2. ribosomes and chloroplast [Option ID = 8968]
3. cytoplasm and chloroplast [Option ID = 8966]
4. cytoplasm and mitochondria [Option ID = 8967]
Correct Answer :-

cytoplasm and chloroplast [Option ID = 8966]
Nuclear endosperm formation is characterized by [Question ID = 2231]
1. Nuclear divisions accompanied by cell wall formation [Option ID = 8922]
2. Primary endosperm nucleus dividing to form a larger micropylar chamber and a smaller chalazal chamber [Option ID = 8924]
3. Autonomous development of endosperm without fertilization [Option ID = 8923]
4. Free nuclear divisions not accompanied by cell wall formation [Option ID = 8921]
Correct Answer :-

Free nuclear divisions not accompanied by cell wall formation [Option ID = 8921]
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A specimen of a named taxon collected, usually later, from the original type locality is called: [Question ID = 2227]
1. Isotype [Option ID = 8907]
2. Syntype [Option ID = 8908]
3. Neotype [Option ID = 8905]
4. Topotype [Option ID = 8906]
Correct Answer :-

Topotype [Option ID = 8906]
In case of Paramecium aurelia, allele K and kappa particles are interrelated. Which of the following is a wrong example of this interrelation? [Question ID = 2208]
1. In absence of K, kappa particle can multiply. [Option ID = 8831]
2. In absence of K, kappa particle cannot multiply. [Option ID = 8829]
3. In absence of pre-existing kappa particle, K cannot produce kappa particles. [Option ID = 8830]
4. In absence of kappa particle, presence of K results in a sensitive strain. [Option ID = 8832]
Correct Answer :-

In absence of K, kappa particle can multiply. [Option ID = 8831]

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The enzyme responsible for the reduction of nitrogen into ammonia during biological nitrogen fixation is [Question ID = 2249]
1. Nitrogenase [Option ID = 8996]
2. Nitrate reductase [Option ID – 8994]
3. Dinitrogenase [Option ID = 8993]
4. Hydrogenase [Option ID = 8995]
Correct Answer :-
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Nitrogenase [Option ID = 8996]
Digitalin, a drug, is obtained from [Question ID = 2201]
1. Common Foxglove [Option ID = 8801]
2. Sarpagandha [Option ID = 8803]
3. Dhatura [Option ID = 8804]
4. Belladonna [Option ID = 8802]
Correct Answer :-

Common Foxglove [Option ID = 8801]
In bryophytes, meiosis occurs in the [Question ID = 2186]
1. sporogenous tissue to produce spores [Option ID = 8744]
2. gametangia to produce sperm and egg [Option ID = 8743]
3. gametophyte to produce gametangia [Option ID = 8741]
4. spores to produce protonema [Option ID = 8742]
Correct Answer :-

sporogenous tissue to produce spores [Option ID = 8744]
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Wall ingrowths that impart sieve-like appearance to pits of vessels are termed as [Question ID = 2193]
1. Crateriform pits. [Option ID = 8771]
2. Tyloses. [Option ID = 8772]
3. Vessel parenchyma pits. [Option ID = 8770]
4. Vestured pits. [Option ID = 8769]
Correct Answer :-

Vestured pits. [Option ID = 8769]
Gonimocarp is [Question ID = 2169]
1. a collective name given to a bunch of filaments of haploid cells that produce carpospores. [Option ID = 8676]
2. a collective name for a structure formed by a group of gonimoblasts. [Option ID = 8675]
3. a bunch of filaments of diploid cells that produce carpospores. [Option ID = 8673]
4. a mass of diploid cells that produce carpospores. [Option ID = 8674]
Correct Answer :-

a collective name for a structure formed by a group of gonimoblasts. [Option ID = 8675]

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In Gnetum, [Question ID = 2189]
1. archegonia remain in a group surrounded by a common jacket. [Option ID = 8754]
2. nuclei of some nucellar cells function as eggs. [Option ID = 8753]
3. there are no distinct archegonia and some free nuclei of female gametophyte function as eggs. [Option ID = 8756]
4. there are two distinct archegonia at the micropylar end of the female gametophyte. [Option ID = 8755]
Correct Answer :-
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there are no distinct archegonia and some free nuclei of female gametophyte function as eggs. [Option ID = 8756]
In Polygonum type of embryo sac, which of the following is attached to the wall of the embryo sac, only at the micropylar end. [Question ID = 2229]
1. Central cell [Option ID = 8913]
2. Antipodal cells [Option ID = 8916]
3. Egg cell [Option ID = 8915]
4. Egg apparatus [Option ID = 8914]
Correct Answer :-

Egg apparatus [Option ID = 8914]
Near isogenic lines (NILs) are normally used for [Question ID = 2212]
1. studying a single gene or locus controlling a particular trait. [Option ID = 8848]
2. studying QTLs located at various loci controlling a trait [Option ID = 8846]
3. studying QTLs coming from two parents [Option ID = 8847]
4. studying genes located at various loci controlling various traits [Option ID = 8845]
Correct Answer :-

studying a single gene or locus controlling a particular trait. [Option ID = 8848]
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Plant cryptoviruses tend to escape detection because [Question ID = 2178]
1. they are not transmitted by seed or pollen grains [Option ID = 8710]
2. they cause very mild or no visible symptoms [Option ID = 8709]
3. they occur as high copy number plasmid DNAs that can integrate into the host genome [Option ID = 8712]
4. their genome organization is not characteristic of plant viruses [Option ID = 8711]
Correct Answer :-

they cause very mild or no visible symptoms [Option ID = 8709]
Identify the correct target enzyme of Glyphosate during the development of herbicide tolerant plants: [Question ID = 2250]
1. 3-enolphosphateshikimate-5-pyruvate synthase [Option ID = 9000]
2. 3-enolpyruvylshikimate-5-phosphate synthase [Option ID = 8998]
3. 5-enolphosphateshikimate-3-pyruvate synthase [Option ID = 8999]
4. 5-enolpyruvylshikimate-3-phosphate synthase [Option ID = 8997]
Correct Answer :-

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This download link is referred from the post: DUET Last 10 Years 2011-2021 Question Papers With Answer Key || Delhi University Entrance Test conducted by the NTA

This post was last modified on 29 January 2020

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