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Important Questions on Classification of Living Organisms

EASY
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
Which of the following are the most suitable indicators of SO2 pollution in the environment?
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Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
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?
EASY
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
Select the incorrect pair of viral diseases in plants.
EASY
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
Explain the structure of T-even bacteriophage.
EASY
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids

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

Question Image

MEDIUM
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
Which one of the following statements is correct about the tobacco mosaic virus?
MEDIUM
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
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:
MEDIUM
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
Explain the structure of T-even phages.
HARD
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
What is the order of events that occur in a bacteriophage lytic cycle?
MEDIUM
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids

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 of Living Organism>Classification of Living Organisms>Virus and Viroids
Which of the following statements is wrong for viroids?
EASY
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
A location with luxuriant growth of lichens on the trees indicates that the:
MEDIUM
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
Explain the structure of T-even bacteriophages.
EASY
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
Select the wrong statement.
HARD
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
Explain the structure of TMV.
MEDIUM
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
Define bacteriophage and write one example of it.
MEDIUM
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
Describe the structure of T-even bacteriophage.
EASY
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
Which one of the following statements is true about viruses?
MEDIUM
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
A pathogan which cannot be cultured in an artificial medium is:
EASY
Biology>Diversity of Living Organism>Classification of Living Organisms>Virus and Viroids
Which of the following statements is incorrect?