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Biological Classification Viruses, Viroids, Prions And Kingdome Monera MCQ
Quiz 9
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Q.1
phylogeny and inter-relationship found between taxa on the basis of number, type and arrangement of chromosomes is … .. [ JIPMER 1998]
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a) Cytotaxonomy
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b) Chromotaxonomy
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c) Karyotaxonomy
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d) Chemotaxonomy
Explanation
Answer : (c)
Q.2
Bordetella pertussis causes
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a) Whooping cough
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b) Meningitis
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c) Influenza
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d) Pneumonia
Explanation
Answer : (a)
Q.3
A bacteriophage possesses an enzyme
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a) Protease
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b) Urease
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c) Dehydrogenase
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d) Lysozyme
Explanation
Answer : (d)
Q.4
RNA containing viruses belong to …[ AMU 1997]
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a) Ribocubica
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b) Ribobinala
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c) Ribovira
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d) Deoxyvira
Explanation
Answer : (c)
Q.5
Process absent in viruses is .. .. [ AIIMS 1996]
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a) Replication
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b) Mutation
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c) Protein synthesis
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d) Energy liberation
Explanation
Answer : (d)
Q.6
RNA is genetic material in … .. [ BHU 1996]
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a) Bacterium
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b) Bacteriophage
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c) TMV
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d) Protozoan
Explanation
Answer : (c)
Q.7
A characteristic of virus is … .. [ AFMC 1997]
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a) Without independent metabolism
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b) With independent metabolism
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c) Multiplication outside living cells
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d) Culture in cell free medium
Explanation
Answer : (a)
Q.8
The stage following infection by virus when virus particles cannot be observed is … [ JIPMER 1998]
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a) Infection phase
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b) Eclipse phase
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c) Maturation phase
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d) Lysogenic phase
Explanation
Answer : (b)
Q.9
Feeding on dead and decaying organisms is a nutrition called … .. [ CPMT 2000]
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a) Autotrophic
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b) Saprotrophic
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c) Parasitic
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d) Holozoic
Explanation
Answer : (b)
Q.10
Nitrite is changed to nitrate by …. [ Pb.PMT 2009]
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a) Nitrobacter
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b) Nitrosomonas
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c) Clostridium
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d) Pseudomonas
Explanation
Answer : (a)
Q.11
The term “ New Systematics” was introduced by .. .. [ AFMC 1993]
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a) Bentham and Hooker
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b) Linnaeus
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c) Julin Huxley
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d) A.P. de Candolle
Explanation
Answer : (c)
Q.12
Vinegar is produced by … .. [ MPPMT 1992]
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a) Two step process first fermentation of sugar by Yeast, second fermentation of ethyl alcohol by acetic acid bacteria
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b) Fermentation of sugar by Lactobacillus
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c) Fermentation of sugar by Aspergillus
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d) Fermentation of sugar by Saccharomyces cerevisiae
Explanation
Answer : (a)
Q.13
Assign the following substance to cell wall, flagella, S-layer and pili of bacteria in proper sequence a) Glycoprotein b) Fimbrin c) Teichoic acid d) Flagellin
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a) c,a, d, b
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b) c, d, a, b
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c) b, d, c, a
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d) c, d, b,a
Explanation
Answer : (b)
Q.14
RNA retroviruses have enzyme that … .. [ AFMC 1999]
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a) Translates host DNA
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b) Polymerises host DNA
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c) Transcribes viral RNA to cDNA
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d) Destroys host DNA
Explanation
Answer : (d)
Q.15
Mycoplasma is not inhibited by penicillin because it does not have ..[ odisha 2008]
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a) Sexual reproduction
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b) Cell wall
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c) Nucleus
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d) Ribosomes
Explanation
Mycoplasma does not have cell wall and can not be killed with Penicillin Answer : (b)
Q.16
Which is not characteristic of Gram(+) bacteria?
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a) Smooth cell wall
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b) Outer membrane
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c) Prominent mesosomes
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d) Two rings in basal body of flagellum
Explanation
Answer : (b)
Q.17
Which one does not have cellular structure? .. .. [ CET Chd. 1997 ]
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a) Bacteriophage
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b) PPLO
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c) Bacterium
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d) Diatom
Explanation
Answer : (a)
Q.18
TMV has size of ..... [ CBSE 2003]
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a) 50 nm × 10 nm
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b) 100 nm × 20 nm
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c) 300 nm × 18 nm
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d) 500 nm × 24 nm
Explanation
Answer : (c)
Q.19
Chemotaxonomy is connected with … .. [ MHTCET 2001]
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a) Classification of chemicals found in plants
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b) Use of phytochemical data in systematic botany
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c) Application of chemicals on herbarium sheets
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d) Use of statistical methods in chemical yielding plants
Explanation
Answer : (b)
Q.20
In bacterial cell division is … [ Odisha 2007]
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a) Amitotic
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b) Mitotic
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c) Meiotic
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d) All the above
Explanation
Answer : (a)
Q.21
Artificial system of classification was first used by … .. [ CBSE 1990]
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a) Linnaeus
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b) De Candolle
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c) Theophrastus
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d) Bentham and Hooker
Explanation
Answer : (c)
Q.22
An antibiotic is … .. [ AIIMS 1992]
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a) Chloramphenicol
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b)Ethephon
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c) Phoshon – D
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d) AMO – 1618
Explanation
Answer : (a)
Q.23
Rabies is caused by a … .. [ DPMT 2008]
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a) Bacterium
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b) Worm
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c) Virus
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d) Fungus
Explanation
Answer : (c)
Q.24
Shorter generation time of E.coli as compared to eukaryotes is due to …
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a) Absence of organelles
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b) Presence of cell wall
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c) Shape
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d) Large surface/volume ratio
Explanation
Answer : (d)
Q.25
Reverse transcriptase … .. [ AFMC 1999 ]
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a) Disintegrates host DNA
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b) Polymerises host DNA
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c) Translates host DNA
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d) Transcribes viral RNA to cDNA
Explanation
Answer : (d)
Q.26
Virus multiplies in … .. [ BHU 2008]
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a) Dead tissue
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b) Soil
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c) Living tissue
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d) Culture medium
Explanation
Answer : (c)
Q.27
Genetic material of retrovirus is ….. [ AMU 1997]
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a) ss RNS
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b) ss DNA
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c) ds RNA
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d) ds DNA
Explanation
Answer : (a)
Q.28
Circular single stranded DNA occurs in bacteriophage … [ AFMC 1998]
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a) T2, T4
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b) Φ × 174, M13
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c) T3, Φ 6
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d) δ. T5
Explanation
Answer : (b)
Q.29
In Reovirus, genetic material is .. .. [ Kerala 2002]
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a) ss DNA
0%
b) ss RNA
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c) ss RNA
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d) ds RNA
Explanation
Answer : (d)
Q.30
Spirulina belongs to kingdom …[ HPPMT 2007]
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a) Monera
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b) Protista
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c) Plantae
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d) Fungi
Explanation
Answer : (a)
Q.31
In artificial system, the organisms are classified on the basis of … .. [ RPMT 1990]
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a) All the possible characters
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b) Phylogenetic trends
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c) A few characters
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d) Anatomical, cytological and biochemical traits along with morphological traits
Explanation
Answer : (c)
Q.32
Escherichia coil is used extensively in biological research as it is … .. [ CBSE 1993]
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a) Easily cultured
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b) Easily available
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c) Easy to handle
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d) Easily multiplied in host
Explanation
Answer : (a)
Q.33
Viruses are no more “alive” than isolated chromosomes because ….. [ CBSE 2003]
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a) They require both RNA and DNA
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b) They both need food molecules
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c) They both require oxygen from respiration
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d) Both requires the environment of a cell to replicate
Explanation
Answer : (d)
Q.34
Prokaryotic and eukaryotic flagella differ in …[ AFMC 2008]
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a) Location and functioning
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b) Movement and placement
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c) Microtubular organization and function
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d) Microtubular organization and movement
Explanation
Answer : (d)
Q.35
Identify the correct pair having double stranded RNA … ..
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a) Cauliflower mosaic virus and Dahlia mosaic virus
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b) Poliovirus and Wound tumour virus
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c) Tobacco mosaic virus and Reovirus
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d) Wound tumour virus and Reovirus
Explanation
Answer : (d)
Q.36
People recovering from long illness are often advised to take Spirulina because it … ..[AIIMS 2008]
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a) Restores intestinal microflora
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b) Makes food easily digestible
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c) Has antibiotic properties
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d) Is rich in proteins
Explanation
Answer : (d)
Q.37
Virus attacks a bacterium but neither multiples nor the bacterium dies due to … .. [ AMU 2002]
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a) Lysogeny
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b) Adsorption
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c) Assimilation
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d) Viral stability
Explanation
Answer : (a)
Q.38
In coliphage viruses the nucleic acid is .. .. [ JIPMER 1998]
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a) RNA only
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b) DNA only
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c) DNA or RNA
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d) DNA and RNa
Explanation
Answer : (b)
Q.39
Phenetic classification is based on … .. [ CBSE 2004]
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a) Ancestral lineage of existing organisms
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b)Observable characteristics of existing organisms
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c) Dendrograms based on DNA characteristics
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d) Sexual characteristics
Explanation
Answer : (b)
Q.40
Incipient nucleus occurs in … [ Pb PMT 2007]
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a) Myxophyceae
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b) Chlorophyceae
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c) Phaeophyceae
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d) Rhodophyceae
Explanation
Answer : (a)
Q.41
Species Plantarum was written by … .. [ BHU 1990]
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a) Julian Huxley
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b) John Ray
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c) Carolus Linnaeus
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d) Charles Darwin
Explanation
Answer : (c)
Q.42
Sterilisation by autoclaving is carried out to … [ CPMT 1993]
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a) Kill bacteria and other pathogens
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b) Kill viruses
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c) kill bacteria and enzymes
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d) Inactivate enzymes
Explanation
Answer : (a)
Q.43
The latest view for the origin of viruses is … [ Pb. PMT 2005]
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a) They have arisen from nucleic acid and protein found in primitive soup
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b) They arose from bacteria as a result of loss of cell wall, ribosomes etc
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c) They arose from some bacteria which developed a nucleus only
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d) They are modified plasmids which are in fact the fragments of nucleic acid of the host
Explanation
Answer : (d)
Q.44
Which amino acid is present only in bacteria and cyanobacteria … [ MPPMT 2007]
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a) Glycine
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b) Tyrosine
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c) Glutamic acid
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d) Diaminopimelic acid
Explanation
Answer : (d)
Q.45
Assertion : Gram negative bacteria do not retain the stain when washed with alcohol. Reason : The outer face of outer membrane of Gram negative bacteria contain lipopolysaccharides a part of which is integrated with membrane lipids … [ AIIMS 2006]
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a) If both the assertion and reason are true and reason explains the assertion.
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b) If both the assertion and reason are true but reason does not explain the assertion
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c) If assertion is true but reason is false
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d) If assertion is false but reason is true.
Explanation
Both the satements are true and reason is correct The Gram-negative cell wall is composed of a thin, inner layer of peptidoglycan and an outer membrane consisting of molecules of phospholipids, lipopolysaccharides (LPS), lipoproteins and sutface proteins The alcohol/acetone mixture, being a lipid solvent, dissolves the outer membrane of the Gram-negative cell wall Answer : (a)
Q.46
Viral envelope contains … .. [ AMU 2005]
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a) Lipids
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b) Proteins
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c) Carbohydrates
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d) All the above
Explanation
Answer : (d)
Q.47
Which of the following is an example of viral disease? … .. [ RPMT 1998]
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a) Leaf curl of Papays
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b) Late blight of Potato
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c) Black rust of Wheat
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d) Red rot of Sugarcane
Explanation
Answer : (a)
Q.48
Which of the following viruses has DNA? [ Pb PMT 1999 ]
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a) Tobacco Mosaic Virus
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b) Cauliflower Mosaic Virus
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c) Tomato Mosaic Virus
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d) Potato Mosaic Virus
Explanation
Answer : (b)
Q.49
Viral envelope contains … [ AMU 2005]
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a) Lipids
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b) Proteins
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c) Carbohydrates
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d) All the above
Explanation
Answer : (d)
Q.50
Which one is used as biofertilizer? [JKCMEE 2005]
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a) Nostoc
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b) Funaria
0%
c) Volvox
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d) Rhizopus
Explanation
Answer : (a)
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