- Is a virus a prokaryote?
- Can viruses reproduce on their own?
- Can viruses be activated?
- How are viruses different from each other?
- How do viruses hide in the body?
- Can a virus kill another virus?
- What do all viruses have in common?
- How do viruses attack the body?
- How are viruses created?
- How do viruses and cells come in contact with each other?
- Do viruses lie dormant in the body?
Is a virus a prokaryote?
Viruses are not cells at all, so they are neither prokaryotes nor eukaryotes.
Viruses contain DNA but not much else.
They lack the other parts shared by all cells, including a plasma membrane, cytoplasm, and ribosomes..
Can viruses reproduce on their own?
How do viruses multiply? Due to their simple structure, viruses cannot move or even reproduce without the help of an unwitting host cell.
Can viruses be activated?
The genome of a virus that causes latent infection of cells must be transcribed and translated into viral proteins. This occurs when the virus is reactivated from a latent stage to a lytic stage. Certain viral genes that are specific to each virus initiate this reactivation process.
How are viruses different from each other?
Most notably, viruses differ from living organisms in that they cannot generate ATP. Viruses also do not possess the necessary machinery for translation, as mentioned above. They do not possess ribosomes and cannot independently form proteins from molecules of messenger RNA.
How do viruses hide in the body?
Until recently scientists believed that viruses acted independently. Now we know that up to 40 of them can form into vesicles, which are essentially membrane-bound packets or spheres. These membrane sacs act as a Trojan horse to pass through the body’s defenses.
Can a virus kill another virus?
Viruses are world champion parasites—think of all the trouble they give us, from Ebola to HIV. Now French researchers have discovered a viral first … a virus that infects another virus.
What do all viruses have in common?
All viruses have genetic material (a genome) made of nucleic acid. You, like all other cell-based life, use DNA as your genetic material. Viruses, on the other hand, may use either RNA or DNA, both of which are types of nucleic acid.
How do viruses attack the body?
Viruses are like hijackers. They invade living, normal cells and use those cells to multiply and produce other viruses like themselves. This can kill, damage, or change the cells and make you sick. Different viruses attack certain cells in your body such as your liver, respiratory system, or blood.
How are viruses created?
Viruses may have arisen from mobile genetic elements that gained the ability to move between cells. They may be descendants of previously free-living organisms that adapted a parasitic replication strategy. Perhaps viruses existed before, and led to the evolution of, cellular life.
How do viruses and cells come in contact with each other?
When it comes into contact with a host cell, a virus can insert its genetic material into its host, literally taking over the host’s functions. An infected cell produces more viral protein and genetic material instead of its usual products.
Do viruses lie dormant in the body?
Virus latency (or viral latency) is the ability of a pathogenic virus to lie dormant (latent) within a cell, denoted as the lysogenic part of the viral life cycle. A latent viral infection is a type of persistent viral infection which is distinguished from a chronic viral infection.