One of the free living anaerobic nitrogen fixer is ( C.B.S.E. 2010)
25%
a) Rhodospirillum
62%
b) Rhizobium
12%
c) Azotobacter
0%
d) Beijerinckia
Q.2.
Gram stain represents … [CPMT 1991]
14%
a) A technique for staining bacteria and developed by Gram
71%
b) A stain got from Gram
14%
c) A cytochemical technique for differentiation of mitochondria
0%
d) A trade name
Q.3.
Which statement is wrong about viruses … [ CBSE 2012]
20%
a) All are parasites
40%
b) All of them have helical symmetry
40%
c) They have the ability to synthesize nucleic acids and proteins
0%
d) Antibiotics have no effect on them
Q.4.
Two kingdoms figuring in all biological classification are … … [ JKCMEE 2008]
0%
a) Protista and Planate
60%
b) Protista and Animalia
20%
c) Monera and Animalia
20%
d) Plantae and Animalia
Q.5.
Transfer of DNA from one bacterium to another through cell contact is … [ kerala 2002]
40%
a) a) transformation
60%
b) Transduction
0%
c) c) Conjugation
0%
d) Transcription
Q.6.
Which of the following is correct about legumes? …. [ AFMC 1999]
20%
a) They are incapable of fixing nitrogen
60%
b) They fix nitrogen with the help of bacteria that live in their leaves
20%
c) They fix nitrogen with the help of bacteria that live in their roots
0%
d) They fix nitrogen independent of bacteria
Q.7.
Viruses are … .. [ KCET 1998]
43%
a) Obligate parasites
14%
b) Obligate saprophytes
29%
c) Partial parasites
14%
d) Facultative parasites
Q.8.
In Whittaker’s classification, non-nucleated unicellular organism/ prokaryotes are included under … [ BHU 1997]
20%
a) Plantae
40%
b) Monera
40%
c) Protista
0%
d) Animalia
Q.9.
A few organisms are known to multiply at 10° – 108°C. They are probably .. .. [ CBSE 1998]
20%
a) Thermophilic sulphur bacteria
40%
b) Thermophilic subaerial fungi
20%
c) Hot spring blue-green algae
20%
d) Marine archaebacteria
Q.10.
Grown gall disease of plants is caused by ….. [ BHU 2005]
33%
a) Ti-plasmid
0%
b) Pi-plasmid
67%
c) Virus
0%
d) Protozoan
Q.11.
The common nitrogen fixer in paddy field is ( C.B.S.E 2010)
0%
a) Azospirillum
50%
b) Oscillatoria
33%
c) Frankia
17%
d) Rhizobium
Q.12.
Bacterial size is ....
71%
a) 2 – 10 µm
0%
b) 10 – 15 µm
29%
c) 100 -200 µm
0%
d) 15 -50 µm
Q.13.
When a bacterial cell possesses a flagellum on its anterior and posterior sides, the condition is called …
20%
a) Peritrichous
60%
b) Lophotrichous
20%
c) Amphitrichous
0%
d) Monotrichous
Q.14.
A phylum common to unicellular animals and plants is … .. [ DPMT 2009]
60%
a) Monera
0%
b) Plantae
20%
c) Fungi
20%
d) Protista
Q.15.
Golgi apparatus does not occur in … [ BHU 2008]
20%
a) yeast
40%
b) Liver cells
20%
c) Higher plants
20%
d) Bacteria and blue green algae
Q.16.
Which is excluded from Whittaker’s five kingdom classification
33%
a) Algae
0%
b) Fungi
33%
c) Bacteria
33%
d) Viruses
Q.17.
Bacteriophage is … [ JKCMEE 2004]
60%
a) Virus attacking bacteria
20%
b) Virus attacking virus
20%
c) Bacterium attacking virus
0%
d) Stage in bacterial life cycle
Q.18.
Bacteriophage is … .. [ HPPMT 1995 ]
0%
a) Mycoplasma
25%
b) Virus
75%
c) Rickettsia
0%
d) Spirochaete
Q.19.
In Whittaker’s five kingdom classification, eukaryotes are assigned to … .. [ BHU 1994]
60%
a) All the five kingdoms
0%
b) Only four kingdoms
40%
c) Only three kingdoms
0%
d) Only two kingdoms
Q.20.
Tobacco mosaic virus/ virus was crystallized for the first time by .. .. [ AMU 1998 ]
20%
a) Edward Jenner
20%
b) Louis Pasteur
40%
c) Andre Lwoff
20%
d) W.N. Staley
Q.21.
The infectious and contagious bacterial disease that affects cattle, buffaloes, horses, sheep and goats is … [ JKCMEE 2010]
0%
a)Anthrax
25%
b) Necrosis
75%
c) Tick fever
0%
d) Rinderpest
Q.22.
Name the organisms which do not derive energy directly or indirectly from sun … .. [ CBSE 1991]
25%
a) Chemosynthetic bacteria
25%
b) Pathogenic bacteria
25%
c) Symbiotic bacteria
25%
d) Mould
Q.23.
Cyanobacteria are useful biofertilizers in fields of … [ Manipur 2006]
0%
a) Wheat
33%
b) Maize
33%
c) Rice
33%
d) Sugarcane
Q.24.
In some viruses, RNA is present instead of DNA indicating that … .. [ CBSE 1995 ]
25%
a) Their nucleic acid must combine with host DNA before replication
50%
b) They cannot replicate
25%
c) There is no hereditary information
0%
d) RNA can act to transfer heredity
Q.25.
Bacteria connected with acetogenesis is … [ MHTCET 2007]
25%
a) Streptomonas
0%
b) Clostridium
50%
c) Bacillus
25%
d) Citromonas
Q.26.
Transformation experiments were first performed over bacterium … . [ CBSE 2002]
33%
a) Escherichia coli
33%
b) Salmonella typhimurium
0%
c) Diplococcus pneumoniae
33%
d) Pasteurella pestis
Q.27.
Virus attacking blue-green algae is known as … .. [ Odisha 1995]
25%
a) Cyanophage
25%
b) Coliphage
50%
c) Bacteriophage
0%
d) Zoophage
Q.28.
T-bacteriophages possess … .. [ JIPMER 1996]
0%
a) Round shape
40%
b) Tadpole shape
60%
c) Irregular shape
0%
d) Rhomboid shape
Q.29.
Four kingdome classification was proposed by …… [ BHU 1994]
25%
a) Whittaker
25%
b) Copeland
50%
c) Haeckel
0%
d) Linnaeus
Q.30.
Halophilic archaebacterium ( Halobacterium salinarum ) found in Great Salt Lake and Dead Sea cannot live in … . [ Pb PMT 2005]
33%
a) Less than 3M NaCl concentration
33%
b) Less than 5M NaCl concentration
33%
c) More than 5 M NaCl concentration
0%
d) More than 3M NaCl concentration
Q.31.
Biofertiliser for Soya Bean crop is … [ CBSE 2011]
0%
a) Rhizobium
100%
b) Nostoc
0%
c) Azotobacter
0%
d) Azospirillum
Q.32.
In bacteria, sex is determined by presence of … .. [ RPMT 1991]
0%
a) Pili
50%
b) Episome
0%
c) Mesosome
50%
d) Flagella
Q.33.
Amphitrichous flagellation has … [ Odisha 2007]
0%
a) Flagella absent
50%
b) Flagella at one end
50%
c) Flagella at both the ends
0%
d) Flagella all around
Q.34.
Which one does not have eukaryotic organization? [ KCET 2005]
0%
a) Green algae
50%
b) Blue green algae
50%
c) Red algae
0%
d) Golden brown algae
Q.35.
Tailed bacteriophage is … .. [ CBSE 1995]
0%
a) Non-motile
0%
b) Actively motile in water
50%
c) Motile on bacterial surface
50%
d) Motile on surface of plant leaves
Q.36.
A plasmid .. [ Har PMT 2007]
0%
a) Cannot replicate
0%
b) Shows independent assortment
50%
c) Lies along with chromosome
50%
d) Can replicate independently
Q.37.
Protein cover of virus is … [ AFMC 2005]
0%
a) Capsid
0%
b) Virion
100%
c) Viroid
0%
d) Bacterial wall
Q.38.
Common genetic material of bacteriophage is …[ Bih PMT 1996]
0%
a) RNA
67%
b) DNA
33%
c) RNA and DNA
0%
d) DNA and mRNA
Q.39.
In Whittaker’s five kingdom classification, unicellular eucryotes primarily aquatic and having various cell organelles constitute … [ CET Chd.1997]
0%
a) Monera
100%
b) Protista
0%
c) Animalia
0%
d) Plantae
Q.40.
Assertion: Escherichia coli, Shigella sp. And Salmonella sp. Are all responsible for diarrhoeal diseases. Reason : Dehydration is common to all types of diarrhoeal diseases and adequate supply of fluids and electrolytes should be ensured … [ AIIMS 2006]
0%
a) If both the assertion and reason are true and reason explains the assertion.
50%
b) If both the assertion and reason are true but reason does not explain the assertion
50%
c) If assertion is true but reason is false
0%
d) If assertion is false but reason is true.
Q.41.
An organism with non-cellulosic cell wall and autotrophic nutrition would belong to … [ BHU 2012]
0%
a) Monera
0%
b) Protista
0%
c) Animalia
100%
d) Fungi
Q.42.
Which one is not true of bacterial cell wall?
0%
a) Not antigenic
0%
b) Provides shape to bacterium
100%
c) Not stainable with simple dyes
0%
d) Made of mucopeptide
Q.43.
It causes abortion …
50%
a) Viruses
0%
b)Bacteria
0%
c) Mycoplasma
50%
d) Chlamydia
Q.44.
Genetic material of influenza virus is … [ CBSE 1996]
0%
a) Single helix DNA
33%
b) Double helix DNA
33%
c) Double strand RNA
33%
d) Single strand RNA
Q.45.
A bacterium becomes resistant to antibiotic except by … [ Odisha 2003]
0%
a) Making enzyme for drug degradation
50%
b) Developing impermeability to drug
0%
c) Modification of drug
50%
d) Moving away from drug
Q.46.
Transduction was discovered in bacteria by … [ BHU 2008]
0%
a) Lederberg and Tatum
0%
b) Zinder and Lederberg
50%
c) Wallace and Jacob
50%
d) Herelle and Twort
Q.47.
T2 has … .. [ AFMC 1997]
0%
a) ds DNS
50%
b) ss RNA
0%
c) ds RNA
50%
d) ss DNA
Q.48.
Helical contractile sheath occurs in … .. [ AMU 1997]
0%
a) Bacteria
0%
b) Bacteriophage
0%
c) Riboviruses
100%
d) Fungi
Q.49.
A non-legume, symbiotic nitrogen fixing bacterium is … [ BHU 2000]
0%
a) Rhizobium
100%
b) Azotobacter
0%
c) Frankia
0%
d) Clostridium
Q.50.
F-factor occurs in …. [ Odisha 2006]
0%
a) Plasmid
0%
b) Cosmid
33%
c) Golgi body
67%
d) Cell wall
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