The factors that determine the host range of animal viruses. Introduction: Viruses are obligate intracellular parasites that require host cells to replicate and multiply. Upon multiplication, they destroy the host cell and infect new host cells. However, they are extremely selective for their target host cells.

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Answer 1

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Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 6.L1, Problem 4WC

(a)

Summary Introduction

To determine:

The factors that determine the host range of animal viruses.

Introduction:

Viruses are obligate intracellular parasites that require host cells to replicate and multiply. Upon multiplication, they destroy the host cell and infect new host cells. However, they are extremely selective for their target host cells.

(b)

Summary Introduction

To analyse:

The peculiarity of influenza virus from other viruses with respect to its host range.

Introduction:

Influenza virus is characterized by presence of hemagglutinin (H) spikes and neuraminidase (N) spikes on its surface. These two proteins are responsible for adsorption of the virus on the host cell and facilitation of RNA insertion inside it, respectively.

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Answer 2

Question

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 6.L1, Problem 4WC

(a)

Summary Introduction

To determine:

The factors that determine the host range of animal viruses.

Introduction:

Viruses are obligate intracellular parasites that require host cells to replicate and multiply. Upon multiplication, they destroy the host cell and infect new host cells. However, they are extremely selective for their target host cells.

(b)

Summary Introduction

To analyse:

The peculiarity of influenza virus from other viruses with respect to its host range.

Introduction:

Influenza virus is characterized by presence of hemagglutinin (H) spikes and neuraminidase (N) spikes on its surface. These two proteins are responsible for adsorption of the virus on the host cell and facilitation of RNA insertion inside it, respectively.

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Answer 3

Question

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 6.L1, Problem 4WC

(a)

Summary Introduction

To determine:

The factors that determine the host range of animal viruses.

Introduction:

Viruses are obligate intracellular parasites that require host cells to replicate and multiply. Upon multiplication, they destroy the host cell and infect new host cells. However, they are extremely selective for their target host cells.

(b)

Summary Introduction

To analyse:

The peculiarity of influenza virus from other viruses with respect to its host range.

Introduction:

Influenza virus is characterized by presence of hemagglutinin (H) spikes and neuraminidase (N) spikes on its surface. These two proteins are responsible for adsorption of the virus on the host cell and facilitation of RNA insertion inside it, respectively.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 6.L1, Problem 4WC

(a)

Summary Introduction