Viruses: Introduction and Properties

They contain only one kind of nucleic acid, either DNA or RNA

By replicating only inside living host cells

Nucleocapsid

<p>Lipid envelope</p> Signup and view all the answers

<p>In the core of the virus</p> Signup and view all the answers

<p>Both DNA and RNA at the same time</p> Signup and view all the answers

<p>Protect the viral genome, provide the structural symmetry, participate in the attachment of the virus particle to the host cell, and determine the antigenic characteristics of the virus.</p> Signup and view all the answers

<p>It is determined by viral genome &amp; by substances derived from host membranes, including combinations of lipids, proteins, and carbohydrates.</p> Signup and view all the answers

<p>They can be hidden from attack by host immune system, but are easily damaged by environmental conditions that destroy biological membranes.</p> Signup and view all the answers

<p>The capsid or envelope of the virus.</p> Signup and view all the answers

<p>Helical capsid.</p> Signup and view all the answers

<p>To attach the virions to host cell receptors.</p> Signup and view all the answers

<p>Because they have a lipid bilayer membrane outside their capsid that is derived from host cell membrane.</p> Signup and view all the answers

<p>To attach the virions to host cell receptors and cause RBCs to clump (hemagglutination).</p> Signup and view all the answers

<p>They can be hidden from attack by host immune system.</p> Signup and view all the answers

<p>Viral genome &amp; substances derived from host membranes.</p> Signup and view all the answers