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
DU MPhil PhD in Botany
Topic:- DU_J18_MPHIL_BOT
- Which of the following statements is not true for nzz (NOZZLE gene mutant) of Arabidopsis? [Question ID = 2001]
- Plays an important role in placenta and ovule primordial differentiation [Option ID = 8003]
- Funiculus appears longer than the wild type ovules [Option ID = 8001]
- Precocious establishment of adaxial-abaxial polarity of ovule [Option ID = 8004]
- Integuments do not show asymmetrical growth [Option ID = 8002]
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Correct Answer :-
Plays an important role in placenta and ovule primordial differentiation [Option ID = 8003]
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- Which of the following plant defense response is not a characteristic of chewing herbivores? [Question ID = 1986]
- Increase in the production of volatile organic compounds like linalool and nerilidol. [Option ID = 7944]
- Increase in levels of amino-acid conjugated jasmonates. [Option ID = 7942]
- Increase in levels of amino acid-conjugated salicylates. [Option ID = 7943]
- Increase in the number of plant trichomes. [Option ID = 7941]
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Correct Answer :-
Increase in levels of amino acid-conjugated salicylates. [Option ID = 7943]
- Which of the following molecule in not a HAMP? [Question ID = 1987]
- Linalool [Option ID = 7946]
- Volicitin [Option ID = 7947]
- Inceptin [Option ID = 7945]
- Benzyl cyanide [Option ID = 7948]
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Correct Answer :-
Linalool [Option ID = 7946]
- Which statement about a transition state analog in an enzymatic reaction is false? [Question ID = 1969]
- It may function as a non-competitive inhibitor of the enzyme. [Option ID = 7876]
- It fits better into the active site than the substrate. [Option ID = 7874]
- It usually is a strong inhibitor of the enzyme. [Option ID = 7873]
- It is a stable molecule and has a structure similar to the presumed transition state. [Option ID = 7875]
Correct Answer :-
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It may function as a non-competitive inhibitor of the enzyme. [Option ID = 7876]
- Which one of the following statements is incorrect for tetrasporic embryo sac formation? [Question ID = 1976]
- Triploid nucleus is formed by the fusion of three nuclei at chalazal end while, one nucleus remains haploid at the micropylar end. [Option ID = 7903]
- Meiosis results in a linear tetrad of megaspores of which either chalazal or micropylar megaspore participates in the embryo sac formation. [Option ID = 7902]
- Coenomegaspore consists of four haploid nuclei with a common cytoplasm. [Option ID = 7904]
- Four nuclei of coenomegaspore are arranged in a 1+2+1 manner. [Option ID = 7901]
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- Which one of the following statements is false? [Question ID = 1989]
- Centromeric regions have suppressed recombination. [Option ID = 7955]
- Genetic and physical maps are collinear. [Option ID = 7953]
- Genetic distances are equal to the actual physical distances between genes. [Option ID = 7956]
- Some regions on the chromosome are more prone to crossing over than others. [Option ID = 7954]
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Correct Answer :-
Genetic distances are equal to the actual physical distances between genes. [Option ID = 7956]
- Which one of the following combinations of techniques can be used for analyzing expression levels of a transgene?
- Southern blotting and Northern blotting
- Northern blotting and Western blotting
- ELISA and qRT-PCR
- FISH and SSR
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- i and iv only [Option ID = 7935]
- i and iii only [Option ID = 7936]
- ii and iii only [Option ID = 7934]
- ii and iv only [Option ID = 7933]
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Correct Answer :-
ii and iii only [Option ID = 7934]
- Which one of the following is not an example of Pathogen Associated Molecular Patterns (PAMP)? [Question ID = 1985]
- Bacterial flagellin (flg22) [Option ID = 7937]
- Peptidoglycan (PGN) [Option ID = 7940]
- Elongation factor Tu (EF-Tu) [Option ID = 7938]
- Toll-like receptor (TLR) [Option ID = 7939]
Correct Answer :-
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Toll-like receptor (TLR) [Option ID = 7939]
- Which one of the following is incorrect for CLAVATA3 gene? [Question ID = 1975]
- Its role is antagonistic to that of WUSCHEL gene. [Option ID = 7899]
- CLAVATA3 gene encodes a small protein expressed in the central zone of SAM. [Option ID = 7898]
- It is involved in maintenance of the root apical meristem. [Option ID = 7900]
- Mutation in CLAVATA3 results in club shaped siliques in Arabidopsis thaliana. [Option ID = 7897]
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Correct Answer :-
It is involved in maintenance of the root apical meristem. [Option ID = 7900]
- Which amino acid motifs present in the Release Factor 1 (RF1) are involved in translation, termination and peptide release from the large subunit of ribosomes in eukaryotes? [Question ID = 1962]
- PVT motif and GGQ motif [Option ID = 7848]
- QQG motif and PLR motif [Option ID = 7847]
- PQR motif and PCR motif [Option ID = 7846]
- MVL motif and GNG motif [Option ID = 7845]
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Correct Answer :-
PVT motif and GGQ motif [Option ID = 7848]
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- Ingested plant virions evade host immune responses in white flies by associating with [Question ID = 2002]
- phagosomes that trigger self-recognition pathways and suppress sumoylation. [Option ID = 8008]
- chaperones produced by gut symbionts. [Option ID = 8005]
- protease inhibitors that inactivate gut digestive enzymes. [Option ID = 8006]
- short interfering RNA (siRNA) molecules complementary to regions of the viral genome. [Option ID = 8007]
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Correct Answer :-
chaperones produced by gut symbionts. [Option ID = 8005]
- Highage-specific survivorship probability in pre-reproductive and reproductive stages of an organism's life have characteristic features of which one of the following survivorship curves: [Question ID = 1996]
- Type II [Option ID = 7982]
- Type III [Option ID = 7983]
- Type II & III [Option ID = 7984]
- Type I [Option ID = 7981]
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Correct Answer :-
Type I [Option ID = 7981]
- Identify the correct source of bar gene: [Question ID = 2000]
- Bacillus thuringiensis [Option ID = 7999]
- E. coli [Option ID = 8000]
- Streptomyces hygroscopicus [Option ID = 7998]
- Saccharomyces cerevisiae [Option ID = 7997]
Correct Answer :-
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Streptomyces hygroscopicus [Option ID = 7998]
- Identify the plant species from which, artemisinin, an anti-malarial drug, is extracted. [Question ID = 1982]
- Rumex hastatus [Option ID = 7926]
- Artemisia maritima [Option ID = 7925]
- Artemisia annua [Option ID = 7927]
- Cinchona officinalis [Option ID = 7928]
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Correct Answer :-
Artemisia annua [Option ID = 7927]
- Evacuation of the column of a transmission electron microscope to 10-4 Torr does not affect [Question ID = 1988]
- focal length of the objective lens. [Option ID = 7950]
- life of the emitter. [Option ID = 7951]
- breakdown of gases within the column. [Option ID = 7952]
- mean free path of electron. [Option ID = 7949]
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Correct Answer :-
focal length of the objective lens. [Option ID = 7950]
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- Nerium oleander is acclimated to high temperature due to [Question ID = 1967]
- excessive accumulation of fatty acids. [Option ID = 7868]
- excessive fluidity of membrane lipids. [Option ID = 7867]
- greater degree of unsaturation of fatty acids in membrane lipids. [Option ID = 7866]
- greater degree of saturation of fatty acids in membrane lipids. [Option ID = 7865]
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- Under the given conditions, which one of the polypeptides listed below will fold into α-helix at pH 7.0? [Question ID = 1968]
- Polyaspartic acid [Option ID = 7870]
- Polyalanine [Option ID = 7869]
- Polyproline [Option ID = 7871]
- Polylysine [Option ID = 7872]
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Correct Answer :-
Polyalanine [Option ID = 7869]
- Gynoecium in family Asteraceae is [Question ID = 2009]
- monocarpellary, unilocular having many ovules on marginal placentation. [Option ID = 8035]
- bicarpellary, syncarpous, unilocular having single ovule on basal placentation. [Option ID = 8033]
- bicarpellary, syncarpous, bilocular having two ovules on axile placentation. [Option ID = 8036]
- bicarpellary, syncarpous, bilocular having many ovules on axile placentation. [Option ID = 8034]
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Correct Answer :-
bicarpellary, syncarpous, unilocular having single ovule on basal placentation. [Option ID = 8033]
- In Oenothera parviflora, permanent translocation heterozgosity is observed. Which of the following sentences is not true about O. parviflora? [Question ID = 1964]
- A ring of 14 chromosomes is formed at meiosis. [Option ID = 7853]
- Only heterozygotes survive. [Option ID = 7854]
- Only homozygotes survive. [Option ID = 7855]
- Heterozygosity is maintained due to balanced lethal system. [Option ID = 7856]
Correct Answer :-
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Only homozygotes survive. [Option ID = 7855]
- Addition of which factor/s converts bacterial core RNA polymerase into a holozyme that can initiate transcription only at promoters? [Question ID = 1961]
- β-70 and 0-30 [Option ID = 7843]
- a-70 [Option ID = 7844]
- TFIIB [Option ID = 7841]
- σ-70 [Option ID = 7842]
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Correct Answer :-
σ-70 [Option ID = 7842]
- Endohydric mosses refers to those which [Question ID = 2006]
- lack the perstome spore dispersal occur only on decay of the sporophyte. [Option ID = 8024]
- conduct water and minerals through the specialized conducting cells. [Option ID = 8022]
- absorb water and minerals through whole surface of the plant. [Option ID = 8021]
- have the erect growth form. [Option ID = 8023]
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Correct Answer :-
conduct water and minerals through the specialized conducting cells. [Option ID = 8022]
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- In the lactose operon, the lac operator (laco) was established to be cis-acting because [Question ID = 1965]
- laco is physically linked to the operon. [Option ID = 7859]
- a single functional laco copy can regulate two copies of the lac operon in a merozygote. [Option ID = 7857]
- a single functional laco cannot regulate two copies of the lac operon in a merozygote. [Option ID = 7860]
- mutations in laco affects lactose uptake. [Option ID = 7858]
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Correct Answer :-
a single functional laco cannot regulate two copies of the lac operon in a merozygote. [Option ID = 7860]
- During photosynthesis, oxidation of water in chloroplasts occurs in/on [Question ID = 1990]
- outer membrane [Option ID = 7960]
- thylakoidal membranes [Option ID = 7958]
- stroma [Option ID = 7959]
- intra-thylakoidal space [Option ID = 7957]
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Correct Answer :-
intra-thylakoidal space [Option ID = 7957]
- Species of which of the following genus is a good source of glycerol and β-carotene? [Question ID = 1973]
- Chondrus [Option ID = 7891]
- Eucheuma [Option ID = 7892]
- Dunaliella [Option ID = 7890]
- Spirulina [Option ID = 7889]
Correct Answer :-
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Dunaliella [Option ID = 7890]
- Agar-agar is not obtained from [Question ID = 1995]
- Gracilaria [Option ID = 7978]
- Fucus [Option ID = 7980]
- Gigartina [Option ID = 7979]
- Gelidium [Option ID = 7977]
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Correct Answer :-
Fucus [Option ID = 7980]
- Homeodomain, present in the DNA binding proteins, contains ________ motifs. [Question ID = 1966]
- Leucine zipper [Option ID = 7864]
- Zinc finger [Option ID = 7863]
- Helix-loop-helix [Option ID = 7861]
- Helix-turn-helix [Option ID = 7862]
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Correct Answer :-
Helix-turn-helix [Option ID = 7862]
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- A study finds that stray cats have whiskers about 10 cm long. After about 20 generations of stabilizing selection, what do you expect to see? [Question ID = 1980]
- Even more cats will have whiskers 10 cm long. [Option ID = 7919]
- Most cats will have whiskers greater than 20 cm long. [Option ID = 7917]
- Most cats will have whiskers less than 10 cm long. [Option ID = 7920]
- Most cats will have whiskers either less than 10 cm or greater than 20 cm long. [Option ID = 7918]
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Correct Answer :-
Even more cats will have whiskers 10 cm long. [Option ID = 7919]
- White rot basidiomycetous fungi are good source of [Question ID = 1999]
- lignase. [Option ID = 7995]
- amylase. [Option ID = 7993]
- protease. [Option ID = 7994]
- lipase. [Option ID = 7996]
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Correct Answer :-
lignase. [Option ID = 7995]
- There are three substances A, B, and C. Given below are the pattern of immunological responses in rabbits when (i) A is administered along with C, (ii) B is administered along with C, and (iii) A is conjugated with B and administered along with C.
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
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