Where is a viruses genetic material

Each virus consists of a nucleocapsid protein coat that surrounds a core of RNA ribonucleic acid genetic material. Surrounding the nucleocapsid is a lipid envelope that contains the glycoprotein spikes haemagglutinin H and neuraminidase N. These viruses were part of the Hong Kong Flu pandemic of that killed approximately one million people worldwide. H3N2 viruses are able to infect birds and mammals as well as humans.

They often cause more severe infections in the young and elderly than other flu strains and can lead to increases in hospitalisations and deaths. Viruses only exist to make more viruses. The virus particle attaches to the host cell before penetrating it. Once replication has been completed the virus particles leave the host by either budding or bursting out of the cell lysis.

The plasma membrane envelops the virus and becomes the viral envelope. The virus is released from the cell. The virus particles burst out of the host cell into the extracellular space resulting in the death of the host cell. Once the virus has escaped from the host cell it is ready to enter a new cell and multiply. Microbiology Today August considers some of the viruses that are transmitted by arthropods and the arthropod vectors that carry them.

Viruses are submicroscopic, which means that you cannot see them in the microscope. What's interesting about viruses is that they have two or three components. Starting from the inside, you will have a nucleic acid, which can be either RNA or DNA, and in both cases the nucleic acid can be either single-stranded or double-stranded.

Then surrounding the nucleic acid will be a protein coat that's in the form of capsid, or little small units that are assembled in a certain way. That is what all viruses have.

Now, some viruses will also have an envelope which they obtain as they emerge from the cell. This page has been archived and is no longer updated. A virus is an infectious agent that can only replicate within a host organism. Viruses can infect a variety of living organisms, including bacteria, plants, and animals. Viruses are so small that a microscope is necessary to visualize them, and they have a very simple structure. When a virus particle is independent from its host, it consists of a viral genome, or genetic material, contained within a protein shell called a capsid.

In some viruses, the protein shell is enclosed in a membrane called an envelope. The viral replication process begins when a virus infects its host by attaching to the host cell and penetrating the cell wall or membrane.