EASY
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Which of the following is not true about viruses?

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Important Questions on Microorganisms Friends and Foe

EASY
Science>Biology>Microorganisms Friends and Foe>Viruses
Explain the structure of T-even bacteriophage.
MEDIUM
Science>Biology>Microorganisms Friends and Foe>Viruses
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
Science>Biology>Microorganisms Friends and Foe>Viruses
Which one of the following statements is correct about the tobacco mosaic virus?
MEDIUM
Science>Biology>Microorganisms Friends and Foe>Viruses
Explain the structure of T-even phages.
HARD
Science>Biology>Microorganisms Friends and Foe>Viruses
What is the order of events that occur in a bacteriophage lytic cycle?
HARD
Science>Biology>Microorganisms Friends and Foe>Viruses
Explain the structure of TMV.
EASY
Science>Biology>Microorganisms Friends and Foe>Viruses
Select the incorrect pair of viral diseases in plants.
EASY
Science>Biology>Microorganisms Friends and Foe>Viruses
The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the:
MEDIUM
Science>Biology>Microorganisms Friends and Foe>Viruses

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:

EASY
Science>Biology>Microorganisms Friends and Foe>Viruses
Which one of the following statements is true about viruses?
MEDIUM
Science>Biology>Microorganisms Friends and Foe>Viruses
Describe the structure of T-even bacteriophage.
EASY
Science>Biology>Microorganisms Friends and Foe>Viruses
Which of the following statements is incorrect?
MEDIUM
Science>Biology>Microorganisms Friends and Foe>Viruses
Define bacteriophage and write one example of it.
MEDIUM
Science>Biology>Microorganisms Friends and Foe>Viruses
Explain the structure of T-even bacteriophages.
EASY
Science>Biology>Microorganisms Friends and Foe>Viruses
Which of the following statements is wrong for viroids?
EASY
Science>Biology>Microorganisms Friends and Foe>Viruses
Select the wrong statement.
EASY
Science>Biology>Microorganisms Friends and Foe>Viruses
Which one of the following statements is wrong?
EASY
Science>Biology>Microorganisms Friends and Foe>Viruses
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
Science>Biology>Microorganisms Friends and Foe>Viruses

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

Question Image

MEDIUM
Science>Biology>Microorganisms Friends and Foe>Viruses
A pathogan which cannot be cultured in an artificial medium is: