BIOLOGICAL CLASSIFICATION( Viruses, Viroids, Prions and Kingdome Monera)

 

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BIOLOGICAL CLASSIFICATION( Viruses, Viroids, Prions and Kingdome Monera

Question 1
Select the wrong statement : [ReAIPMT 2015]
A
Mosaic disease in tobacco and AIDS in human being are caused by viruses
B
The viroids were discovered by D.J. Ivanowski
C
W.M. Stanley showed that viruses could be crystallized
D
The term 'contagium vivum fluidum' was coined by M.W. Beijerinck

Question 2
Spirulina belongs to kingdom ..... [HPPMT 2007]
A
Monera
B
Protista
C
Plantae
D
Fungi

Question 3
Agrobacterium tumefaciens causes ..... [CPMT 1998]
A
Wilt
B
Damping off
C
Rust
D
Crown gall

Question 4
Phages which show lysogenic cycle are known as ..... [JIPMER 1997]
A
Lytic phages
B
Temperate phages
C
Virulent phages
D
Avirulent phages

Question 5
A bacterium which has been genetically modified to control pollution is ..... [CPMT 1998]
A
Pseudomonas
B
Rhizobium
C
Nitrobacter
D
Nitrosomonas

Question 6
Germ theory of disease was put forth by ..... [AFMC 1990]
A
De Bary
B
Lister
C
Pasteur
D
Koch

Question 7
Yersinia pestis causes ..... [CBSE 1995]
A
Syphilis
B
Leprosy
C
Whooping cough
D
Plague

Question 8
A bacteriophage possesses an enzyme
A
Protease
B
Urease
C
Dehydrogenase
D
Lysozyme

Question 9
Assertion: Plasmids are single stranded extra chromosomal DNA.
Reason : Plasmids are possessed by eukaryotic 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 both the assertion and reason false

Question 10
Viruses parasittising bacteria are ..... [MPPMT 2010]
A
Bacteriophages
B
Bacto-viruses
C
Retroviruses
D
Plasmids
There are 10 questions to complete.

 

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