ANATOMY
GENITO URINARY AND ADRENAL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Can’t be defined.
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Have the same morphology and nucleic acid.
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Infect the same cells and cause the same disease.
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Have the same genetic information and ecological niche.
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Detailed explanation-1: -Viral species: A group of viruses sharing the same genetic information and ecological niche (host).
Detailed explanation-2: -“Virus species” was first defined as “…a polythetic class of viruses that constitutes a replicating lineage and occupies a particular ecological niche” by van Regenmortel. Currently, “[a] species is the lowest taxonomic level in the hierarchy approved by the ICTV.
Detailed explanation-3: -When a virus particle is independent from its host, it consists of a viral genome, or genetic material, contained within a protein shell called a capsid. In some viruses, the protein shell is enclosed in a membrane called an envelope.
Detailed explanation-4: -A retrovirus is a virus that uses RNA as its genomic material.