Categories of Microbes
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Questions and Answers

What are the four categories of viruses based on the type of nucleic acid they possess?

Double-stranded DNA viruses, Single-stranded RNA viruses, Single-stranded DNA viruses, Double-stranded RNA viruses

Describe the steps in the multiplication of animal viruses.

Attachment, Penetration, Uncoating, Biosynthesis, Assembly

What is a latent virus infection?

Viral infections where the virus hides from the immune system by remaining dormant

What are oncogenic viruses?

<p>Viruses that cause cancer</p> Signup and view all the answers

What are the primary targets for the Human Immunodeficiency Virus (HIV)?

<p>CD4+ cells with CD4 receptors on their surface</p> Signup and view all the answers

What distinguishes viruses from living cells in terms of DNA and RNA?

<p>Viruses possess either DNA or RNA, while living cells possess both.</p> Signup and view all the answers

Describe the structure of a typical virion.

<p>A typical virion consists of a genome of either DNA or RNA, surrounded by a capsid (protein coat) composed of capsomeres. Some may have an outer envelope of lipids and polysaccharides.</p> Signup and view all the answers

What is the role of host cells in viral replication?

<p>Viruses depend on the ribosomes, enzymes, and metabolites of the host cell for protein and nucleic acid production.</p> Signup and view all the answers

Explain the term 'oncogenic viruses' or 'oncoviruses'.

<p>Oncogenic viruses are viruses that cause specific types of cancer.</p> Signup and view all the answers

Why are viruses considered acellular microbes?

<p>Viruses lack the ability to replicate on their own and require a host cell for replication.</p> Signup and view all the answers

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