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Vaccine
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What two processes are directed by viral genes that are activated inside the host cell?
Replication and assembly of new viral particles are processes directed by viral genes that are activated inside the host cell. The viral genes hijack the host cell machinery to produce more virus particles and assemble them before releasing them to infect other cells.
What organelles of cells assemble HIV?
The virus "hijacks" the nucleus and makes this organelle "order" new virus parts and assembles them.
What does the strand of genes do in a virus do?
The strand of genes in a virus contains the genetic information necessary for the virus to replicate and produce new viral particles. This genetic material, which can be either DNA or RNA, encodes proteins that facilitate the virus's entry into host cells, hijack the host's cellular machinery for replication, and assemble new virions. Essentially, the genetic strand directs the virus's lifecycle and determines its characteristics, such as infectivity and pathogenicity.
What must a virus do to live?
It is questionable whether virus is "alive" or not. If it were alive it wouldn't have to do anything to live, it needn't food or drink. Virus is sometimes considered to be just a more complicated molecule.
Do Viruses multiply through binary fission?
No, they do not. 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.No, only living cells divide by binary fission. Viruses are not alive.
How do new pieces of the virus reproduce?
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.
Why is an isolated virus not considered living?
They are not alive. 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.
How many virus particles can fit along a 1 millimeter line?
It depends on the size of the virus particles. On average, virus particles range from 20 to 400 nanometers. Assuming an average size of 100 nanometers, one millimeter could fit around 10,000 virus particles end-to-end.
What are Viruses that immediately take over a cell's functions called?
A virus the immediately takes over a cell's functions is an active virus. An active virus causes the host cell to make new viruses, destroying the host cell.
How does an active virus multiply?
Once inside a cell, a virus's genetic material takes over of the cell's functions. It instructs the cell to produce the virus's proteins and genetic material. These proteins and genetic material then assemble into new viruses.
What are the four steps an active virus takes to reproduce itself in a bacterial cell?
Attachment: The virus attaches to the surface of the bacterial cell. Entry: The virus injects its genetic material into the bacterial cell. Replication: The viral genetic material replicates using the host's cellular machinery. Release: The newly formed virus particles are released from the bacterial cell to infect other cells.
Describe the last stage before escape of a viral infection?
assembly of the virus particles and post-translational modification of the viral proteins.
