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Computer Viruses

Computer viruses are harmful pieces of software which can reproduce themselves and automatically spread to other computers and networks. Questions about computer virus techniques and specific computer viruses belong here.

5,673 Questions

Is viruses solid?

Viruses are not solid objects. They are microscopic infectious agents that consist of genetic material (either DNA or RNA) enclosed in a protein coat. They are considered to be particles rather than solid structures.

How do enveloped viruses differ from nonenveloped viruses?

DNA or RNA + Structural Proteins + Enzymes and nucleic acid binding proteins = Nucleocapsid (may be the same as a virion or surrounded by an envelope)

If there is only a Nucleocapsid, then it is considered a Naked Capsid Virus

If there is a Nucleocapsid with the addition of Glycoproteins and a Membrane, then the virus is considered enveloped.

Does virus use photosynthesis?

No, viruses do not have the ability to perform photosynthesis. Viruses are considered to be non-living entities that require a host cell to replicate and carry out their life cycle. Photosynthesis is a process unique to plants, algae, and some bacteria that enables them to convert sunlight into energy.

Is phage cure virus?

Bacteriophage
A bacteriophage (from 'bacteria' and Greek φᾰγεῖν phagein "to eat") is any one of a number of viruses that infect bacteria. Bacteriophages are among the most common organisms on Earth.The term is commonly used in its shortened form, phage.

Typically, bacteriophages consist of an outer protein capsid enclosing genetic material. The genetic material can be ssRNA, dsRNA, ssDNA, or dsDNA ('ss-' or 'ds-' prefix denotes single-strand or double-strand) between 5,000 and 500,000 nucleotides long with either circular or linear arrangement. Bacteriophages are much smaller than the bacteria they destroy - usually between 20 and 200 nm in size.

Phages are estimated to be the most widely distributed and diverse entities in the biosphere. Phages are ubiquitous and can be found in all reservoirs populated by bacterial hosts, such as soil or the intestines of animals. One of the densest natural sources for phages and other viruses is sea water, where up to 9×108 virions per milliliter have been found in microbial mats at the surface, and up to 70% of marine bacteria may be infected by phages.

They have been used for over 60 years as an alternative to antibiotics in the former Soviet Union and Eastern Europe. They are seen as a possible therapy against multi drug resistant strains of many bacteria.

What must be true for viruses to be able to replicate?

Viruses must infect a host cell in order to replicate. Once inside the host cell, the virus can hijack the cell's machinery to produce new viral particles. Without a host cell, viruses are unable to replicate.

What is the difference in a virus family and virus genus?

Genus and Family are different levels in the classification system used to distinguish all the organism we encounter. The hierarchy (ordered from most general to most specific) is as follows:

Kingdom -> Phylum -> Class -> Order -> Family -> Genus -> Species

Do viruses infect fungi?

Yes. Mycoviruses are viruses that infect certain fungi including mushrooms/toadstools, moulds like penicillin, and mycorrhizae. They can therefore affect production of edible mushrooms, penicillin and plants that benefit from useful symbiotic relationships with mycorrhizal fungi on their roots.

How animals are exploited?

Animals are often exploited for their labor, such as in agriculture or entertainment industries, where they are forced to work for human benefit. They are also exploited for their resources, such as in the fur and leather industries. Additionally, animals are exploited in scientific research where they may be subjected to harmful experiments.

How can viruses be seen?

Viruses are incredibly small - much smaller than the smallest of bacteria, even though many millions of bacteria could fit on a pinhead. Therefore viruses can only be seen with the help of a very powerful microscope such as a scanning ellectron microscope.

What is the difference between exploitive and exploitative?

Exploitive and exploitative both drive from the word exploit. The only difference is that exploitative is an adjective and exploitative is an adverb.

Can viruses replicate?

Viruses are unable to replicate on their own and require a host cell to do so. Once inside a host cell, a virus hijacks the cell's machinery to produce more copies of itself.

What are different characteristics of the computer?

Some characteristics of a computer include processing power, storage capacity, input/output devices, operating system, connectivity options, and the ability to run software applications. Additionally, computers can vary in size, form factor, and portability.

What is a characteristic of viruses?

Viruses are non-living entities that require a host cell to replicate. They contain genetic material (either DNA or RNA) surrounded by a protein coat. Viruses can cause a wide range of diseases in various organisms.

What should you do if your air condition line freezes up?

Turn off the air conditioner to allow the line to defrost. Check for any blockages or restrictions that may be causing the freezing, such as a dirty air filter or low refrigerant levels. Once the line has thawed completely, you can turn the air conditioner back on and monitor it for any further issues.

Is it dangerous when air pops out of can when it is opened?

Harmful bacteria may contaminate the food if air is forcefully expelled from a can when opened. This can cause foodborne illnesses. Additionally, the abrupt release of pressure can pose a risk of injury if the contents spray out unexpectedly. It's best to discard any canned food that sprays upon opening.

Activated open viruses virus virus i love you viruses 100 active?

It seems like you are referring to the concept of computer viruses being activated or active on a system. It's important to have up-to-date antivirus software to protect your devices from these threats. Be cautious of clicking on suspicious links or downloading unknown files to prevent virus infections.

Which scientist used a microscope to view ''animalcules''?

Antony van Leeuwenhoek (1632-1723) discovered bacteria, free-living and parasitic microscopic protists, sperm cells, blood cells, microscopic nematodes and rotifers, and much more with the microscopes he made. He referred to these organisms as animalcules. His research, which was widely circulated, opened up an entire world of microscopic life to the awareness of scientists.

What are the six groups of computer viruses?

Here is a list of 10 different computer viruses. The storm virus, Sasser virus, Nimda virus, Melissa virus, Code Red 1 and 2 virus, Morris virus, ILOVEYOU virus, Brain computer virus, Conflicker, and Elk cloner are 10 different computer viruses.

Once you have been exploited the captor will maintain the exploitation engine process through?

Implementing coercive control tactics and psychological manipulation to maintain power and control over the victim. This can involve threats, isolation, gaslighting, and other manipulative behaviors to ensure the victim stays trapped in the exploitative relationship. Furthermore, the captor may use physical violence or other forms of abuse to reinforce their dominance and keep the victim compliant.

What is a Polymorphic virus?

A polymorphic virus is an advanced type of computer virus. It is similar to an encrypted virus in that it consists of an encrypted copy of the virus and a small decrypting module but every time a polymorphic virus infects a file it encrypts itself differently and rewrites the decrypting module. A well written polymorphic virus therefore has no parts that remain the same between infections making it hard for anti-virus software to detect using virus signatures.

Does a virus need a host cell?

Yes, they implant their DNA into a cell. The DNA tells the cell to replicate the virus inside itself. When the cell is full of the virus, it explodes, releasing viruses all around the targeted area.

What does a virus ultimately do to the host cell?

Viruses hijack the host cell's machinery to replicate their own genetic material, produce new virus particles, and eventually cause the host cell to burst, releasing the new viruses to infect other cells. This process ultimately leads to cell death and can cause harm to the larger organism.

Size of a virus compared to a human cell?

A virus is much smaller than a human cell, typically ranging in size from 20 to 400 nanometers, while a human cell can range from 10 to 30 micrometers in size. This size difference is due to the simpler structure of a virus, which consists of genetic material surrounded by a protein coat, compared to the complex organelles and structures found within a human cell.

How do you catch a virus?

Many types of virus can be identified experimentally either by there morphology using a scanning electron microscope(SEM) which allows for the detection of the number of capsomers and overall shape and symmetry of the virus. Or by an ELISA type testing based on antigen specificity.

You can only identify a virus through a scanning electron microscope, because they are much smaller than bacteria and cannot be seen by the naked eye.