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Chapter 21: Q. 6 (page 532)

Viruses_______.

a. all have a round shape

b. cannot have a long shape

c. do not maintain any shape

d. vary in shape

Short Answer

Expert verified

Viruses vary in shape.

Step by step solution

01

Introduction

A cellular microorganisms are viruses. They are made up of a nucleic acid core, a proteinaceous capsid that surrounds it, and an envelope. They come in a variety of forms and sizes.

They are categorised into four categories based on their shape: filamentous, icosahedral, enveloped, and head and tail. Viruses do not all have the same form.

Filamentous viruses are cylindrical and lengthy in shape, therefore they can have a long shape.

Viruses have the ability to preserve their form.

02

Explanation

Viruses come in a variety of forms and sizes.

These include filamentous viruses, which are cylindrical and long, icosahedral viruses, which are spherical, enveloped viruses, which have a membrane surrounding the capsid, and head and tail viruses, which have a head like icosahedral viruses and a tail like filamentous viruses.

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Most popular questions from this chapter

Which is true of DNA viruses?

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Figure 21.10 Which of the following statements is false?

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b. In the lysogenic cycle, phage DNA is incorporated into the host genome.

c. An environmental stressor can cause the phage to initiate the lysogenic cycle.

d. Cell lysis only occurs in the lytic cycle.
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