Q.1
Karyotaxonomy is based on … ..[ MPPMT 1999]
  • a) Trinomial nomenclature
  • b) Organic evolution
  • c) Number of chromosomes
  • d) Band formed on chromosomes
Q.2
Which is not antibiotic? … [ MPPMT 1993]
  • a) Citric acid
  • b) Streptomycin
  • c) Cephalosporin
  • d) Griseofulvin
Q.3
Prion consists of .. .. [ MPPMT 2007]
  • a) DNA
  • b) RNA
  • c) Both DNA and RNA
  • d) Protein
Q.4
An anaerobic nitrogen fixing bacteria is … [ CBSE 2010]
  • a) Azotobacter
  • b) Chlorobium
  • c) Rhodospirillum
  • d) Clostridium
Q.5
Tuberculosis is caused by …[ DPMT 2008]
  • a) Clostridium
  • b) Mycobacterium
  • c) Vibrio cholera
  • d) Salmonella typhi
Q.6
Potato spindle Tuber disease is due to … .. [ BHU 2012]
  • a) Nematode
  • b) Virus
  • c) Bacterium
  • d) Viroid
Q.7
Mature virus particle is … .. [ BHU 1999]
  • a) Virion
  • b) Viricide
  • c) Capsid
  • d) Peplomer
Q.8
Plant viruses mostly have … .. [ MPPMT 1999 ]
  • a) DNA
  • b) RNA
  • c) Both DNA and RNA
  • d) Coiled nucleolus
Q.9
Five kingdom classification was proposed in the year … [ kerala 2003]
  • a) 1959
  • b) 1969
  • c) 1919
  • d) 1859
Q.10
DNA is not associated with histones in … [ DPMT 2005]
  • a) Prokaryotes
  • b) Eukaryotes
  • c) Fungi
  • d) Animals
Q.11
Holophytic nutrition occurs in … .. [ MPPMT 2000]
  • a) Amoeba
  • b) Entamoeba
  • c) Euglena
  • d) Giardia
Q.12
Cell division of blue-green algae is similar to that of …. .. [ AMU 1998]
  • a) Bacteria
  • b) Green algae
  • c) Brown algae
  • d) Red algae
Q.13
Which of the following are neither prokaryotes nor eukaryotes … .. [ JKCMEE 2010]
  • a) Bacteria
  • b) Monera
  • c) Fungi
  • d) Bacteriophages
Q.14
A chain of coccoid bacterial cells is …. [ manipal 2004]
  • a) Staphylococcus
  • b) Monococcus
  • c) Diplococcus
  • d) Streptococcus
Q.15
Which is not moneran? [ DPMT 2008]
  • a) Mycoplasma
  • b) slime mould
  • c) Archaebacteria
  • d) Eubacteria
Q.16
Virus differs from bacterium in having … .. [ JKCMEE 2011]
  • a) Cell wall
  • b) Cytosol
  • c) DNA as genetic material
  • d) DNA or RNA with no ribosomes
Q.17
Viruses are living because … .. [ AFMC 2007]
  • a) They can reproduce
  • b) They have protein synthesizing machinery
  • c) They have some genes
  • d) They are parasites
Q.18
Potato leaf roll disease is caused by … .. [ MPPMT 1999 ]
  • a) Mycoplasma
  • b) Virus
  • c) Microspores
  • d) Bacterium
Q.19
An artificial system of classification was proposed by … .. [ kerala 2004]
  • a) Bentham and Hooker
  • b) Linnaeus
  • c) Engler and Prantl
  • d) Bessey
Q.20
Assertion: True nucleus is absent in E.Coli and other prokaryotes. Reason: An undifferentiated, unorganized fibrillar nucleus without any limiting membrane is found in prokaryotic cells
  • 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.21
Algae with photosynthetic pigment possess nutrition … .. [ AMU 1997 ]
  • a) Holozoic
  • b) Saprophytic
  • c) Holophytic
  • d) Parasitic
Q.22
Prokaryotic cells are characterized by … .. [ AFMC 2011]
  • a) Absence of nuclear envelope
  • b) Presence of nuclear envelope
  • c) Presence of distinct chromosome
  • d) Absence of chromatin material
Q.23
Bacteria involved in production of methane gas are (A.F.M.C. 2010)
  • a) Actinomycetes
  • b) Methanogens
  • c) Methanotrophs
  • d) Cyanobacteria
Q.24
The genetic material; of Papaya Mosaic Virus is … [ odisha 2012]
  • a) ssDNA
  • b) dsDNA
  • c) ds RNA
  • d) ss RNA
Q.25
Bacterium Pseudomonas is useful as it can … .. [ AIIMS 2004]
  • a) Transfer genes from one plant to an other
  • b) Fix atmospheric nitrogen
  • c) Produce several antibiotics
  • d) Decompose a variety of organic compounds
Q.26
Which one of the following sets includes the bacterial diseases? [ AIIMS 1997]
  • a) Cholera, typhoid, mumps
  • b) Tetanus, Tuberculosis, Measles
  • c) Malaria, Mumps, Poliomyelitis
  • d) Diphtheria, Leprosy, Plague
Q.27
Caulimovirus ( Cauliflower Mosaic ) virus have … [ CBSE 2001]
  • a) Double stranded DNA
  • b) Single stranded DNA
  • c) Single stranded RNA
  • d) Double stranded RNA
Q.28
Streptomyces rimosus is the source of the antibiotic … .. [ MPPMT 1990]
  • a) Chloromycetin
  • b) Erythromycin
  • c) Aureomycin
  • d) Terramycin
Q.29
Botulism is due to contamination of … [ CET Chd.2010]
  • a) E.coli
  • b) Salmonella
  • c) Clostridium
  • d) Pseudomonas
Q.30
What is true for archaebacteria 1) Extreme halophiles 2) Extreme thermophiles 3) Methanogens 4) Occurrence of peptidoglycan in cell wall
  • a) 1,2,3 correct
  • b) 1 and 2 correct
  • c) 2 and 4 correct
  • d) 1 and 3 correct
Q.31
A system of classification that is based on evolution, order and ancestry is known as .. .. [ Pb PMT 1998]
  • a) Natural system
  • b) Analogous system
  • c) Phylogenetic system
  • d) Homologous system
Q.32
Non-symbiotic nitrogen fixers are … [ CBSE 1994]
  • a) Azotobacter
  • b) Pseudomonas
  • c) Soil Fungi
  • d) Blue-Green Algae
Q.33
A bacterial disease is … .. [ MPPMT 1990]
  • a) Amoebic dysentery
  • b) Beri-beri
  • c) Leprosy
  • d) Arthritis
Q.34
Bacterial photosynthesis is characterized by …. [ DPMT 2005]
  • a) Evolution of O2
  • b) Evolution of H2
  • c) Evolution of CO2
  • d) Non-evolution of O2
Q.35
The stored food in blue-green algae is … .. [ BHU 1990]
  • a) Starch
  • b) Glucose
  • c) Cellulose
  • d) Related to glycogen
Q.36
Heterocysts occur in … [ CET 2010]
  • a) Chlorophyceae
  • b) Phaeophyceae
  • c) Cyanophyceae/cyanobacteria/ Nostoc
  • d) Rhobophyceae
Q.37
What is true of viruses? [ kerala 2011]
  • a) They are obligate intercellular parasites
  • b) They are bigger than bacteria
  • c) They contain both DNA and RNA
  • d) They are non-specific for their host
Q.38
Pasteurisation frees food stuffs of … .. [ BHU 1990]
  • a) All bacteria
  • b) All living organisms
  • c) Vegetative forms of bacteria
  • d) Vegetative forms of all pathogenic bacteria
Q.39
Three phase of taxonomy, alpha, beta and omega were recognized by … .. [ CET chd. 2006 ]
  • a) A.P. de Candolle
  • b) Turrill
  • c) Heywood
  • d) Hulian Huxley
Q.40
Pathogenicity of leprosy and tuberculosis is due to … [ Kerala 2008]
  • a) Wax D
  • b) Prostaglandins
  • c) Cholesterol
  • d) Ergosterol
Q.41
Latest classification of biological kingdom has been proposed by … ..
  • a) Linnaeus
  • b) Haeckel
  • c) Whittaker
  • d) John Ray
Q.42
A bacterial genome refers to the total number of genes located on .. .. [ MPPMT 1995]
  • a) Single chromosome
  • b) Haploid set of chromosomes
  • c) Diploid set of chromosomes
  • d) Tetraploid set of chromosomes
Q.43
Bovine spongiform encephalopathy disease is equal to … .. [ CBSE 2000]
  • a) Kala-azar
  • b) Parkinson’s disease
  • c) Creutzfeldt- Jakob disease
  • d) None of the above
Q.44
Which one of the following statements about viruses is correct …. [ CBSE 2003]
  • a) Viruses possess their own metabolic system
  • b) All viruses contain both RNA and DNA
  • c) Viruses are obligate parasites
  • d) Nucleic acid of viruses is known as capsid/
Q.45
Which one of following can fix nitrogen? .. … [ BHU 19990]
  • a) Mycoplasma
  • b) Azotobacter
  • c) Anabaena
  • d) Both B and C
Q.46
Conversion of ammonia into nitrite and nitrate is … [ JKCMEE 2005]
  • a) Ammonification
  • b) Denitrification
  • c) Nitrification
  • d) All the above
Q.47
A polyhedral virus is … [ kerala 2000]
  • a) TMV
  • b) Polio virus
  • c) Adenovirus
  • d) Vaccinia virus
Q.48
Chemotrophs do not need … [ DPMT 1997]
  • a) H2S
  • b) Nitrite
  • c) Sunlight
  • d) Ammonium compound
Q.49
Which of the following cannot be grown on artificial culture medium? [ CPMT 1994 ]
  • a) Escherichia coli
  • b) TMV
  • c) Aspergillus
  • d) Yest
Q.50
Cyanobacteria are … [ CET Chd 2009]
  • a) Autotrophic prokaryotes with characteristic blue green pigments
  • b) Bacteria infecting the cyanophycean algae
  • c) Viruses infecting blue green algae
  • d) Cyanophycean members infecting bacteria
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