Which of the following is a significant chara | vedclass

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(A) Viruses are considered obligate parasites because they lack the machinery required for independent metabolism and reproduction. They are inert out

Vedclass · Accepted Answer

They are active and alive only inside a host cell.

Vedclass · Answer

(A) Viruses are considered obligate parasites because they lack the machinery required for independent metabolism and reproduction. They are inert outside a host cell and become active only when they enter a living host cell,where they hijack the host's cellular machinery to replicate. While other options like small size or nucleic acid content are true,the most defining biological characteristic that distinguishes them from other living organisms is their absolute dependence on a host cell for life processes.

Which of the following is a significant characteristic of viruses?

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Sometimes when a virus attacks a bacterium,neither the virus multiplies nor the bacterium dies. This phenomenon is called as

Choose the correct option for the following statements:
$(i)$ The name virus,meaning venom or poisonous fluid,was given by $Pasteur / D. J. Ivanowsky$.
$(ii)$ $W. M. Stanley / T. O. Diener$ discovered viroids.

$S :$ The symbiotic association between algal and fungal components is called lichen.
$R :$ The study of lichens is called lichenology.

Who discovered viroids?

Which of the following is a correct pair?

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