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