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Why most viruses that infect bacteria have tails whereas most viruses that infect animals and plants do not?
Bacterial viruses, or bacteriophages, often have tails to help them attach to specific receptors on the bacterial cell surface. Animal and plant viruses typically do not need tails because they enter host cells through different mechanisms, such as membrane fusion or endocytosis. The diversity of host organisms and cell types likely contributes to the variety of viral structures seen across different types of viruses.
Why are viruses difficult to target therapeutically?
Viruses use their host's metabolic enzymes and some viruses mutate very quickly so they can easily become resistant to drugs. Viruses are almost biologically inert until they infect a cell.
What is a male virus called?
There are no male and female viruses. Viruses do not reproduce sexually and so do not have gender.
What does a host cell provide a virus?
A way of replicating itself. Viruses can not replicate themselves because they are, basically, genetic material covered in a protein capsid. So, they must enter a living cell, hijack the reproductive process of the cell and have the cell turn out copies of the viruses genetic material and protein capsid. Then the viruses manufactured in the cell causes lysis of the cell and the viruses emerge to infect more cells. A simplified expexplanation of the lytic cycle.
What might happen to a cell after viruses leave it?
The host cell lyses, which means the host cell burst and is killed.
Can viruses reproduce with dead or alive cells?
Viruses cannot reproduce on their own because they lack the necessary cellular machinery. They need to infect a living host cell in order to replicate and produce more virus particles. In some cases, viruses can infect and replicate within host cells that are no longer alive, but this is not considered true reproduction.
Are Viruses able to reproduce without using other organisms?
viruses are dormant when they are not inside a living cell. that means they don't have living characteristics when outside a living cell. they only reproduce when they are inside a living cell.
What does a virus need to make more viruses?
The virus attaches itself to a living cell, Human or another microbe. It then sends in its genetic codes and forces the cell to reproduce more of that code. Eventually the other cells are full of viruses and pop sending more viruses everywhere to then redo the process. It then causes diseases such as aids or chicken pox
Why would viruses not grow on milk?
Viruses require living cells to replicate and grow. Milk does not contain living cells, so viruses cannot infect or reproduce in milk. Additionally, milk has natural defense mechanisms, such as enzymes and antibodies, that can inhibit the growth of viruses.
Are viruses host specific?
It means that a virus will only attack what its meant to. ie: If you get the flu the virus is supposed to attack your airways that is why you get a stuffy nose and a cough if it was not specific it would mean that you could catch the flu virus and get a pain in your leg. it means that a virus can infect to its specific host only which provides it suitable environmernt to replicate. the infection needs host and virus surface interactions and also the genetic compatebility a virus which may infect a plant or animal may not infect humans due to its host specificity but when there occurs a barrier crossage b/w any two species due to mutations or genetical adaptations etc by a viral genome then the virus gets the potential to infect unusual or new hosts and results in new viral strains for eg. the case of HIV and H1N1 can be stdied for this, and this is the case of modified host specificty.
What parts of a computer do viruses infect?
Their are many parts of a computer that viruses infect. Most viruses infect a certain file or program so that whenever that file is run, the virus is also executed. Some viruses called Master Boot Record viruses infect the Master Boot Record of your computer. The Master Boot Record is the partition of your computer first executed when you boot up your computer. When you turn on your computer, it runs all the programs inside the Master Boot Record partition and then passes control to other child processes. Viruses in this class infect the Master Boot Record so that whenever your turn on your computer, the viruses runs at startup too. These viruses are very tricky to find as they hide in a very deep part of your Operating System and manually deleting them could damage your computer.
Why is it difficult in establishing the etiology of cancer?
Viruses can infect a cell (s) without causing cancer, sometimes cancer can occur long after an infection takes place. Cancer is not contagious, so difficult to track.
