Because they don't have the metabolism or apparatus to do so. They lack ribossomes, rough endoplasmatic reticulum, a cell...
They must infect a cell that has a means to reproduce itself in order to reproduce.
Yes they have own DNA. So they replicate by their own
The nucleic acid of a virus consists of either DNA or RNA, which contains the genetic information required for the virus to replicate and infect host cells. This genetic material directs the virus's metabolism and ability to hijack host cellular machinery for its own reproduction.
Circular DNA that can replicate on their own are called plasmids. In the field of biotechnology, plasmids are of great importance. Mitochondria also has some of its own DNA.
DNA is the genetic material.So they can self replicate.
A virus is like a Tupperware container. It is abiotic (never living), and just acts as a container storing deoxyribonucleic acid (DNA) for that specific virus. First, the virus attaches itself to a living cell. Next, it injects its own DNA into the cell. The virus's DNA instructs the cell to put ALL of its resources into copying the DNA and making more of the same virus. Last, the cell ruptures and the new viruses are set free to repeat the process.
Mitochondria have their own DNA and the machinery to replicate it. This allows them to reproduce independently of the cell's nuclear DNA. This ability likely originated from their evolution as separate organisms that were later engulfed by eukaryotic cells.
Viruses replicate by hijacking a host's cells. The virus inserts its own RNA sequence into the host cell's nucleus, forcing it to replicate the virus until the host cell dies.
Yes, they do replicate their own mitochondrial DNA or mt DNA
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.
They have thier own DNA and ribosomes.So they replicate themselves
They got their own DNA. So they replicate themselves
Yes,they do have.So they can self replicate.