Characteristics of virus

Answer 1

Viruses are composed of two main parts: an outer protein covering called a capsid and an inside core of either DNA or RNA. Not both DNA and RNA. Some of these have an envelope over the capsid. The ones that do not are said to be naked. The proteins in the capsid allow the virus to attach to the "docking stations" proteins of the host cell. The naked viruses are more resistant to changes in the environment.
Some naked viruses include poliomyelitis, warts, the common cold, chickenpox, shingles, mononucleosis, herpes simplex (cold sores), influenza, herpes viruses and HIV (AIDS).
Some enveloped viruses include norovirus (stomach bug), rotavirus and human papillomavirus (HPV).
The envelope can be damaged by freezing temperatures, chlorine, and phenol. If damaged, the virus cannot infect.

Viruses are not an organism at all. They are not alive. They are nonliving. They are like cockle burrs that "grab" hold of your clothing or a dog’s coat. They are hijackers. Once they get attached to the cell of a living cell, they can take it over and "make" the living cell produce virus particles instead of cell parts. These particles can assemble into more viruses and then they break out of the cell (killing it) and begin the process again. They cannot make more viruses on their own.

They are very small and can be considered ultramicroscopic. We were not able to see them with the best light microscopes as we could bacteria (prokaryotes). We have to use an electron microscope to see them as they are that small. This was not available until recently.

Answer 2

Viruses -

Threat Level - Intermediate to Severe

What is a computer virus? A computer virus is a piece of malicious code that adds itself to other existing programs, including operating systems. Computer Viruses spread quickly and wreck havoc on computer systems. Including potential destruction of operating systems and data.

There are different types of viruses and they range from being a nuisance that constantly displays pop-ups to being a real severe danger that deletes system files, attaches to registries, destroys ability to log into the internet and even destroying the computer's operating system along with all the data that is on it. Unless you have completely backed-up the data on your laptop, recovering that data will be impossible if you have to re-install the operating system after a virus infection.

While there are hundreds of different types of viruses with various levels of dangers, one of the most dangerous is the Trojan Horse, all though threat severity levels vary with the different types of Trojans, basically they are all dangerous and should always be protected against. Unfortunately some Trojans infect computers and cause such damage that it becomes irreversible and a reinstall of the entire operating system becomes necessary.

Many viruses slow down computer performance tremendously and especially Internet Browsers, there are other causes however for slow computers so do not assume that it is a virus. The best way to detect if you have a virus is by installing and running anti-virus software.

The best protection against computer viruses is prevention, early detection and removal. A good anti-virus or Malware removal program can protect computers and provide peace of mind when Surfing the net.

You can read a guide to anti-virus protection software including all details and reviews of free and paid Anti-Virus programs and my top picks by clicking on Related Links Below.

Answer 3

A virus is a germ a/o bacteria that infects an animal/human body. It spreads the virus to your blood cell. There fore, making you ill.

Answer 4

viruses are obligate intracellular entities and are considered to be acellular

Answer 5

We can not answer this question as you do not have any choices (which?) to choose from.

Answer 6

One of the characteristics of viruses is that they do contain proteins and nucleic acids.

Answer 7

my butt hurts(: just kidding i dont know!