Which of the following statement(s) is/are true about viruses?

i. Viruses are smaller than the bacteria

ii. Viruses are active outside the host cell

iii. Viruses use the host cell to reproduce

iv. Viruses do not contain DNA or RNA

i and iii

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ii and iv

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iii and iv

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Solution

The correct option is A
i and iii

Viruses are smaller than the bacteria. Viruses consists of a genetic material (DNA or RNA) as well as a protein coat. Viruses require the host cell to reproduce. They are inactive outside the host cell.

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Similar questions

Q. Which of the following statement(s) is/are true about viruses?
(i) Viruses are smallest among all microorganisms.
(ii) Viruses can live freely.
(iii) Viruses use the host cell to reproduce.
(iv) Viruses do not have DNA or RNA.

Q. How many of the following statements are NOT true?
(i) No virus contains both DNA & RNA
(ii) Viruses couldn’t pass through bacteria – proof filters
(iii) W.M. Stanley showed that viruses could be crystallised
(iv) T.O. Diener discovered viroids

Statement 1: Viruses are dead when they are outside the host body.
Statement 2: Viruses do not have a cellular organisation.

Viruses are dead when it is outside a host cell. They are alive only inside a host cell.

With respect to the given statements, choose the correct option.
Statement 1: Viruses are inactive when they are outside the host body.
Statement 2: Viruses do not have a cellular organisation.

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Which of the following statement(s) is/are true about viruses? i. Viruses are smaller than the bacteria ii. Viruses are active outside the host cell iii. Viruses use the host cell to reproduce iv. Viruses do not contain DNA or RNA

The correct option is A i and iii Viruses are smaller than the bacteria. Viruses consists of a genetic material (DNA or RNA) as well as a protein coat. Viruses require the host cell to reproduce. They are inactive outside the host cell.

Which of the following statement(s) is/are true about viruses?

i. Viruses are smaller than the bacteria

ii. Viruses are active outside the host cell

iii. Viruses use the host cell to reproduce

iv. Viruses do not contain DNA or RNA

The correct option is A
i and iii

Viruses are smaller than the bacteria. Viruses consists of a genetic material (DNA or RNA) as well as a protein coat. Viruses require the host cell to reproduce. They are inactive outside the host cell.