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DU MSc Microbiology
Topic:- DU_J18_MSC_MICRO
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- Sanger's method of sequencing is: [Question ID = 51724]
- Sequencing by chain synthesis [Option ID = 86888]
- Sequencing by chain cleavage [Option ID = 86890]
- Sequencing by chain termination [Option ID = 86889]
- Sequencing by chain ligation [Option ID = 86891]
Correct Answer :-
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Sequencing by chain termination [Option ID = 86889]
- What is the hydrogen ion concentration in moles/L, if pH of a solution is 3.0? [Question ID = 51740]
- 1 x 10-3 [Option ID = 86954]
- 4 x 10-3 [Option ID = 86955]
- 3 x 10-3 [Option ID = 86953]
- 3 [Option ID = 86952]
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Correct Answer :-
1 x 10-3 [Option ID = 86954]
- A taxonomic system which takes into consideration a large number of phenotypic and genotypic characteristics of the organism is called: [Question ID = 51757]
- Numerical taxonomy [Option ID = 87021]
- Molecular taxonomy [Option ID = 87022]
- Phylogenetics [Option ID = 87020]
- Phylogenomics [Option ID = 87023]
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Correct Answer :-
Numerical taxonomy [Option ID = 87021]
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- The cytokine which is most commonly used for proliferation of bone marrow cells in vitro: [Question ID = 51768]
- TGF-β [Option ID = 87066]
- GM-CSF [Option ID = 87064]
- IFN-γ [Option ID = 87065]
- IL-2 [Option ID = 87067]
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Correct Answer :-
GM-CSF [Option ID = 87064]
- The interaction of two proteins within a cell can be visualized by: [Question ID = 51689]
- All of the above [Option ID = 86751]
- Biomolecules with fluorescence complementation [Option ID = 86749]
- Fluorescence recovery effectively transferred [Option ID = 86748]
- Fluorescence resonance energy transfer [Option ID = 86750]
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Correct Answer :-
Fluorescence resonance energy transfer [Option ID = 86750]
- The arrangement in which flagella are distributed all around the bacterial cell is known as: [Question ID = 51727]
- Amphitrichous [Option ID = 86901]
- Peritrichous [Option ID = 86902]
- Monotrichous [Option ID = 86903]
- Lophotrichous [Option ID = 86900]
Correct Answer :-
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Peritrichous [Option ID = 86902]
- The dried female flowers of Humulus lupulus are used in the production of: [Question ID = 51725]
- Wine [Option ID = 86893]
- Bread [Option ID = 86892]
- Beer [Option ID = 86894]
- Tofu [Option ID = 86895]
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Correct Answer :-
Beer [Option ID = 86894]
- The Swiss cheese ripening process is done using: [Question ID = 51738]
- Geotrichium candidum [Option ID = 86947]
- Penicillium roqueforti [Option ID = 86945]
- Penicillium camemberti [Option ID = 86944]
- Propionibacterium sp. [Option ID = 86946]
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Correct Answer :-
Propionibacterium sp. [Option ID = 86946]
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- The culture media containing heat labile constituents are best sterilized by: [Question ID = 51687]
- UV-irradiation [Option ID = 86743]
- Filtration using membrane filter [Option ID = 86742]
- Dry heat at 180°C for 30 min [Option ID = 86740]
- Autoclaving at 15 psi for 30 min [Option ID = 86741]
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Correct Answer :-
Filtration using membrane filter [Option ID = 86742]
- The koji for miso is a culture of: [Question ID = 51736]
- Aspergillus oryzae [Option ID = 86937]
- Aspergillus lentulus [Option ID = 86939]
- Aspergillus flavus [Option ID = 86936]
- Aspergillus fumigatus [Option ID = 86938]
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Correct Answer :-
Aspergillus oryzae [Option ID = 86937]
- Klinefelter syndrome is characterized by: [Question ID = 51712]
- chromosome 19 trisomy [Option ID = 86841]
- chromosome 21 monosomy [Option ID = 86843]
- one or more extra X chromosomes [Option ID = 86840]
- fragile X chromosome [Option ID = 86842]
Correct Answer :-
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one or more extra X chromosomes [Option ID = 86840]
- Peptidoglycan is also known as: [Question ID = 51732]
- N-acetyl glucosamine [Option ID = 86922]
- N-acetyl muramic acid [Option ID = 86920]
- Murein mucopeptide [Option ID = 86921]
- Mesodiaminopimelic acid [Option ID = 86923]
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Correct Answer :-
Murein mucopeptide [Option ID = 86921]
- All of the following are sporicidal except: [Question ID = 51706]
- Formaldehyde [Option ID = 86818]
- Glutaraldehyde [Option ID = 86816]
- Ethylene oxide [Option ID = 86817]
- Alcohol [Option ID = 86819]
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Correct Answer :-
Alcohol [Option ID = 86819]
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- The time required to kill 90% of the micro-organisms in a sample at a specific temperature is the [Question ID = 51698]
- Decimal reduction time [Option ID = 86785]
- Log reduction [Option ID = 86786]
- Thermal inactivation constant [Option ID = 86787]
- Thermal death point [Option ID = 86784]
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Correct Answer :-
Decimal reduction time [Option ID = 86785]
- The new antigens which appear on the tumors produced by irradiation are called: [Question ID = 51705]
- Tumor-specific transplantation antigens (TSTA) [Option ID = 86813]
- Carcino-embryonic antigens [Option ID = 86814]
- Tumor associated antigens (TAA) [Option ID = 86812]
- Tumor infiltrating antigens [Option ID = 86815]
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Correct Answer :-
Tumor-specific transplantation antigens (TSTA) [Option ID = 86813]
- Thermoduric bacteria are majorly found in: [Question ID = 51729]
- Pasteurized milk and dried milk [Option ID = 86909]
- Ice-creams [Option ID = 86908]
- None of the these [Option ID = 86911]
- Vegetables [Option ID = 86910]
Correct Answer :-
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Pasteurized milk and dried milk [Option ID = 86909]
- The phenomenon in which the severity of symptoms in genetic disorders increases from generation to generation is called: [Question ID = 51699]
- Genetic drift [Option ID = 86788]
- Genetic anticipation [Option ID = 86789]
- Genetic polymorphism [Option ID = 86791]
- Genetic erosion [Option ID = 86790]
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Correct Answer :-
Genetic anticipation [Option ID = 86789]
- Deviation in Hardy-Weinberg equilibrium in a population would be caused by [Question ID = 51720]
- Small population size [Option ID = 86875]
- Lack of mutation [Option ID = 86874]
- Lack of selection [Option ID = 86873]
- Random mating [Option ID = 86872]
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Correct Answer :-
Small population size [Option ID = 86875]
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- If the specific growth rate of the microorganism is 0.25 h-1, find out it's doubling time? [Question ID = 51750]
- 1.77 h [Option ID = 86992]
- 2.77 h [Option ID = 86993]
- 4.77 h [Option ID = 86995]
- 3.77 h [Option ID = 86994]
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Correct Answer :-
2.77 h [Option ID = 86993]
- A polymerase that extends DNA chains in template-independent manner is: [Question ID = 51726]
- Klenow [Option ID = 86897]
- DNA pol I [Option ID = 86896]
- Terminal deoxynucleotidyl transferase [Option ID = 86898]
- Pfu DNA polymerase [Option ID = 86899]
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Correct Answer :-
Terminal deoxynucleotidyl transferase [Option ID = 86898]
- The Pathogenicity Islands (PAI) which are responsible for emergence of new pathogens are part of: [Question ID = 51696]
- Integral part of integrons [Option ID = 86778]
- Core genome of bacteria [Option ID = 86776]
- Part of plasmids [Option ID = 86779]
- Flexible genome pool of bacteria [Option ID = 86777]
Correct Answer :-
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Core genome of bacteria [Option ID = 86776]
- Universal primers used in Sanger's sequencing of plasmid DNA are: [Question ID = 51769]
- primers complementary to the vector sequences flanking the multiple cloning site [Option ID = 87071]
- primers complementary to the antibiotic resistance gene of the vector [Option ID = 87069]
- primers complementary to the multiple cloning sequence of the vector [Option ID = 87070]
- primers of random sequence of length 18 nucleotides [Option ID = 87068]
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Correct Answer :-
primers complementary to the vector sequences flanking the multiple cloning site [Option ID = 87071]
- In 2011, which virus was declared by OIE to be eradicated from earth after successful culmination of global vaccination and monitoring program for that virus? [Question ID = 51700]
- Rinderpest virus [Option ID = 86794]
- Sheeppox virus [Option ID = 86793]
- Smallpox virus [Option ID = 86792]
- Peste-des-petits ruminants virus [Option ID = 86795]
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Correct Answer :-
Rinderpest virus [Option ID = 86794]
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- In the latent state, Herpes simplex virus makes an 8.3 kilobase RNA transcript called: [Question ID = 51682]
- LMT or latent membrane transcript [Option ID = 86722]
- None of the above [Option ID = 86723]
- LAT or latency associated transcript [Option ID = 86720]
- LANA or latency associated nuclear antigen [Option ID = 86721]
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Correct Answer :-
LAT or latency associated transcript [Option ID = 86720]
- Variegation in four o'clock plants is an example of: [Question ID = 51743]
- Maternal effect [Option ID = 86964]
- Nuclear inheritance [Option ID = 86966]
- Organelle heredity [Option ID = 86965]
- None of the these [Option ID = 86967]
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Correct Answer :-
Organelle heredity [Option ID = 86965]
- Tetracycline blocks protein synthesis by: [Question ID = 51762]
- Inhibiting translocase enzyme [Option ID = 87043]
- Inhibiting peptidyl transferase [Option ID = 87042]
- Inhibiting binding of aminoacyl tRNA to ribosomes [Option ID = 87040]
- Inhibiting initiation of translation [Option ID = 87041]
Correct Answer :-
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Inhibiting binding of aminoacyl tRNA to ribosomes [Option ID = 87040]
- Winogradsky column is often used for the isolation of: [Question ID = 51734]
- Escherichia spp. [Option ID = 86930]
- Pyrolobus spp. [Option ID = 86931]
- Desulfovibrio spp. [Option ID = 86928]
- Sulfolobus spp. [Option ID = 86929]
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Correct Answer :-
Desulfovibrio spp. [Option ID = 86928]
- What are the end products of Entner-Doudoroff pathway? [Question ID = 51713]
- Pyruvate [Option ID = 86846]
- Acetaldehyde, pyruvate and CO2 [Option ID = 86847]
- Acetaldehyde and pyruvate [Option ID = 86845]
- Ethanol and pyruvate [Option ID = 86844]
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Correct Answer :-
Ethanol and pyruvate [Option ID = 86844]
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- Flagella move the cell by: [Question ID = 51723]
- An individual flagellum beating in a whip-like motion [Option ID = 86886]
- Attaching to nearby particles and contracting [Option ID = 86885]
- Spinning like a propeller [Option ID = 86884]
- Many flagella beating in a synchronous whip-like motion [Option ID = 86887]
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Correct Answer :-
Spinning like a propeller [Option ID = 86884]
- Use of microbes for the break down or removal of toxic wastes in water and soil is called as: [Question ID = 51765]
- Putrefaction [Option ID = 87053]
- Recycling [Option ID = 87055]
- Bioremediation [Option ID = 87054]
- Decomposition [Option ID = 87052]
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Correct Answer :-
Bioremediation [Option ID = 87054]
- Leucine rich repeats (LRR) are an integral part of which immunological receptor? [Question ID = 51679]
- Dendritic cell receptor [Option ID = 86710]
- Toll-like receptor (TLR) [Option ID = 86708]
- T cell receptor (TCR) [Option ID = 86711]
- NK cell receptor [Option ID = 86709]
Correct Answer :-
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Toll-like receptor (TLR) [Option ID = 86708]
- Chondroid of some bacteria are better known as: [Question ID = 51755]
- Bacterial plasmids [Option ID = 87014]
- Bacterial plastids [Option ID = 87013]
- Bacterial mitochondria [Option ID = 87015]
- Mesosomes [Option ID = 87012]
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Correct Answer :-
Mesosomes [Option ID = 87012]
- A condition in which a single mutation causes multiple phenotypic effects is: [Question ID = 51675]
- Multiphenotypy [Option ID = 86695]
- Pleiotropy [Option ID = 86692]
- Epigenesis [Option ID = 86694]
- Epistasis [Option ID = 86693]
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Correct Answer :-
Pleiotropy [Option ID = 86692]
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- The blood samples of athletes can be tested for the presence of certain performance enhancing drugs using: [Question ID = 51686]
- Real time PCRS [Option ID = 86738]
- Microarrays [Option ID = 86737]
- Mass spectrometry [Option ID = 86736]
- Fluorescence spectroscopy [Option ID = 86739]
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Correct Answer :-
Mass spectrometry [Option ID = 86736]
- Cork screw shaped forms of bacteria are [Question ID = 51721]
- Stalked bacteria [Option ID = 86877]
- Bacilli [Option ID = 86876]
- Spirochaetes [Option ID = 86878]
- Actinomycetes [Option ID = 86879]
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Correct Answer :-
Spirochaetes [Option ID = 86878]
- How many molecules of carbon dioxide are released after five rounds of Krebs cycle? [Question ID = 51719]
- 18 [Option ID = 86871]
- 12 [Option ID = 86870]
- 10 [Option ID = 86869]
- 6 [Option ID = 86868]
Correct Answer :-
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10 [Option ID = 86869]
- The atomizer is used in the following process: [Question ID = 51756]
- Liquid-liquid extraction [Option ID = 87017]
- None of the these [Option ID = 87019]
- Cross flow filtration [Option ID = 87018]
- Spray drying [Option ID = 87016]
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Correct Answer :-
Spray drying [Option ID = 87016]
- The process of nonreciprocal recombination by which one allele in a heterozygote is converted into the corresponding allele is called: [Question ID = 51707]
- Gene targeting [Option ID = 86820]
- Gene knockout [Option ID = 86821]
- Gene amplification [Option ID = 86823]
- Gene conversion [Option ID = 86822]
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Correct Answer :-
Gene conversion [Option ID = 86822]
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- The process of RNA inactivation by siRNAs is termed as: [Question ID = 51758]
- RNA dysfunction [Option ID = 87027]
- RNA silencing [Option ID = 87024]
- RNA interference [Option ID = 87025]
- Short RNA inactivation [Option ID = 87026]
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Correct Answer :-
RNA interference [Option ID = 87025]
- The production of high-fructose corn syrup (HFCS) from glucose involves which of the following enzymes? [Question ID = 51760]
- Hexokinase [Option ID = 87035]
- Invertase [Option ID = 87034]
- Glucose isomerase [Option ID = 87032]
- Glucose oxidase [Option ID = 87033]
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Correct Answer :-
Glucose isomerase [Option ID = 87032]
- This food-borne pathogen is very well known to grow even at refrigeration temperature: [Question ID = 51691]
- Salmonella enteritidis [Option ID = 86759]
- Bacillus subtilis [Option ID = 86756]
- Listeria monocytogenes [Option ID = 86757]
- Vibrio cholerae [Option ID = 86758]
Correct Answer :-
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Listeria monocytogenes [Option ID = 86757]
- The term ecosystem was coined by: [Question ID = 51761]
- Winogradsky [Option ID = 87036]
- Pasteur [Option ID = 87039]
- Flor [Option ID = 87038]
- Tansley [Option ID = 87037]
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Correct Answer :-
Tansley [Option ID = 87037]
- In lactic acid fermentation the final electron acceptor is: [Question ID = 51735]
- Acetyl CoA [Option ID = 86934]
- NAD+ [Option ID = 86932]
- Pyruvate [Option ID = 86933]
- Glucose [Option ID = 86935]
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Correct Answer :-
Pyruvate [Option ID = 86933]
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- Trickling filters are used in the following process [Question ID = 51770]
- Waste water treatment [Option ID = 87072]
- Protein recovery from biomass [Option ID = 87074]
- Milk pasteurization [Option ID = 87073]
- All of the these [Option ID = 87075]
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Correct Answer :-
Waste water treatment [Option ID = 87072]
- The polio virus receptor which is an integral membrane protein is a member of immunoglobulin superfamily of proteins, and also is involved in establishment of intercellular junctions between epithelial cells: [Question ID = 51688]
- CD 55 [Option ID = 86744]
- CD 51 [Option ID = 86746]
- CD 15 [Option ID = 86747]
- CD 155 [Option ID = 86745]
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Correct Answer :-
CD 155 [Option ID = 86745]
- Endotoxic shock produced by gram negative bacteremia is characterized by: [Question ID = 51693]
- Loss of large volumes of blood from host [Option ID = 86765]
- Extensive internal haemorrhage in the organs of the host [Option ID = 86764]
- Disseminated intravascular coagulation in the host [Option ID = 86766]
- Release of minimal amount of cytokines in the host [Option ID = 86767]
Correct Answer :-
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Disseminated intravascular coagulation in the host [Option ID = 86766]
- Interferon free direct acting antivirals (DAAs) therapy has revolutionized treatment for which virus infection in recent years? [Question ID = 51715]
- Human papilloma virus [Option ID = 86855]
- Hepatitis C virus [Option ID = 86854]
- Chickenpox virus [Option ID = 86852]
- Human Immunodeficiency virus [Option ID = 86853]
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Correct Answer :-
Hepatitis C virus [Option ID = 86854]
- A transmembrane protein that mediates the adhesion of cells to the extracellular matrix is: [Question ID = 51692]
- Fibronectin [Option ID = 86761]
- Laminin [Option ID = 86760]
- Entactin [Option ID = 86763]
- Integrin [Option ID = 86762]
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Correct Answer :-
Integrin [Option ID = 86762]
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- Degranulation of most cells during hypersensitivity type I is known to produce: [Question ID = 51681]
- Histamine, serotonin and leukotrienes [Option ID = 86718]
- Histamine alone [Option ID = 86716]
- Histamine, epinephrine and nor-epinephrine [Option ID = 86719]
- Only Histamine and serotonin [Option ID = 86717]
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Correct Answer :-
Histamine, serotonin and leukotrienes [Option ID = 86718]
- Thiosulphate citrate bile salt sugar (TCBS) medium is used for selective isolation of: [Question ID = 51685]
- Non-cholera Vibrios only [Option ID = 86732]
- Non-01 non-0139 Vibrio cholerae [Option ID = 86735]
- Most Vibrios [Option ID = 86733]
- Mostly Vibrio parahemolyticus [Option ID = 86734]
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Correct Answer :-
Most Vibrios [Option ID = 86733]
- Howard Walter Florey and Ernst Boris Chain were given the Nobel Prize for the process development of: [Question ID = 51752]
- Monoclonal antibodies [Option ID = 87000]
- Penicillin [Option ID = 87001]
- Erythromycin [Option ID = 87002]
- Glutamic acid [Option ID = 87003]
Correct Answer :-
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Penicillin [Option ID
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