Viruses are living because _______________.

They can reproduce

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They have protein synthesizing machinery

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Lack cellular machinery to use its genetic machinery

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They are parasites

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Solution

The correct option is A They can reproduce
Like other living organisms, viruses don’t have nuclei and organelles, (which are essentials of a living cell) but they are considered as living because they reproduce inside their host body by serious of chemical reactions, and hence multiply there number inside the host body.

The correct answer is A.

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Similar questions

Q. Viruses lack cellular machinery until they enter a living host and multiply.

Question 9
Making anti-viral drugs is more difficult than making anti-bacterial medicines because

(a) viruses make use of the host machinery
(b) viruses are on the border line of living and non-living
(c) viruses have very few biochemical mechanisms of their own
(d) viruses have a protein coat

Viruses lack cellular machinery and hence do not show any characteristics of life until they enter a living body/host and use the host cell to multiply.

All living organisms are linked to one another because

(a) they have the common genetic material of the same type

(b) they share common genetic material but to varying degrees

(d) All of the above

Q. Select true statement.
(a) Viruses are obligate parasite.
(b) Generally, plant viruses are single stranded RNA viruses.
(c) In addition to proteins, viruses also contain genetic material that could be either RNA or DNA.

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