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Tobacco mosaic virus (TMV) has

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Important Questions on Biological Classification

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Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
Select the incorrect pair of viral diseases in plants.
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Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
Which one of the following statements is true about viruses?
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Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
Assertion (A): Bacteriophages have the ability to replicate within bacterial cells.
Reason (R): Bacterial plasmids have very high copy numbers of their genome in the bacterial cells.
The correct option among the following is:
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Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
Select the wrong statement.
MEDIUM
Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
A pathogan which cannot be cultured in an artificial medium is:
MEDIUM
Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
Which one of the following statements is correct about the tobacco mosaic virus?
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Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
Leaf extract from an infected plant was passed through a filter with a pore size of 0.05μm diameter. The infectious agent was detected in the filtrate. Which ONE of the following is the likely infectious agent?
MEDIUM
Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
Explain the structure of T-even phages.
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Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions

Identify the parts labelled 1,2,3,4 in the given figure

Question Image

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Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
What is the order of events that occur in a bacteriophage lytic cycle?
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Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
Explain the structure of T-even bacteriophage.
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Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
Which of the following statements is incorrect?
MEDIUM
Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
Explain the structure of T-even bacteriophages.
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Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
Which of the following are the most suitable indicators of SO2 pollution in the environment?
HARD
Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
Explain the structure of TMV.
MEDIUM
Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
Define bacteriophage and write one example of it.
MEDIUM
Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
Describe the structure of T-even bacteriophage.
MEDIUM
Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions

Which of the following statements related to viruses are incorrect?

I. Antibiotics can kill viruses

II. Viruses are inactive outside the cell

III. Genes involved in viral metabolism are located in the viral genome

IV. Phages can multiply by two alternative mechanism, the lytic and the lysogenic cycle

The incorrect combination is:

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Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
A location with luxuriant growth of lichens on the trees indicates that the:
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Biology>Diversity in The Living World>Biological Classification>Viruses, Viroids and Prions
Which of the following statements is wrong for viroids?