Which of the following statements is INCORRECT regarding viroids?
They are smaller than viruses.
They are infectious RNA molecules.
They lack a protein coat.
They contain a protein coat.
Related Questions
The viruses are non cellular organisms that are charactarised by
Absence of Nucleic acid
An active structure outside the living cell
An inert crystalline structure outside the cell
Their hyper activity outside the cell
Potato spindle tuber diseases is caused by a
Nematode
Virus
Bacterium
Viroid
Viruses are non-cellular organisms but replicate themselves once they infect the host cell. To which of the following kingdom viruses belong to?
Monera
Protista
Fungi
None of these
Which component is ABSENT in viroids but PRESENT in viruses?
RNA
Protein coat
Genetic material
Infectivity
AIDS in human is caused by
Virus
Bacteria
Protozoan
Bacteriophage
Which one of the following is correctly matched?
National Institute of Virology β Pune
National Institute of Communicable Diseases β Lucknow
Central Drug Research Institute β Kasauli
National Institute of Nutrition β Mumbai
Which of the following are correct to describe viruses?
I. Simple and unicellular organism.
II. Contain DNA or RNA and enclosed by protein coat.
III. Possess own metabolic system and respond to stimuli.
IV. Maintain genetic continuity and undergo mutations.
The correct combination is
I and II
II and IV
II and III
I and III
Term βvirusβ means
Cellular
Pathogen
Parasite
Venom or poisonous fluid
ds RNA is found in
Reovirus
TMV
Ο Γ174
None of these
Protein coat of a virus enclosing nucleic acid is called
Plasmid
Capsid
Vector
Genome
