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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?

Viruses that cause cancer Signup and view all the answers

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

CD4+ cells with CD4 receptors on their surface Signup and view all the answers

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

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

Describe the structure of a typical virion.

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. Signup and view all the answers

What is the role of host cells in viral replication?

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

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

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

Why are viruses considered acellular microbes?

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

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