Question | Answer |
Enveloped virus | Wrap themselves in a bit of the plasma membrane of the host cell as they are released. |
Non-enveloped Virus | Enclosed only by a capsid. |
Viruses are not considered living because | they are dependent on their hosts metabolic machinery for replication. |
The _______ pandemic of 1918-1919 killed millions. | Influenza. |
Virus use in gene therapy step 1 | Insert cloned gene into viral genome. |
Virus use in gene therapy step 2 | Let virus infect bone marrow cells that have been removed from the patient and cultured. |
Virus use in gene therapy step 3 | Viral DNA carrying the cloned gene inserts into the patients DNA. |
Virus use in gene therapy step 4 | Inject engineered cells into patient. |
Virus Reproductive Cycle Step 1 | After the virus bind to the host cell's membrane, the viral DNA is taken into the cell |
Virus Reproductive Cycle Step 2 | Viral DNA is replicated into dozens of new copies, using the hosts metabolic machinery and energy. |
Virus Reproductive Cycle Step 3 | Viral mRNA is transcribed from the Viral DNA. |
Virus Reproductive Cycle Step 4 | New viral proteins are synthesized again using the host's proteins-production molecules. |
Virus Reproductive Cycle Step 5 | The new viral DNA and proteins assemble, forming many new virus particles. |
All viruses have a container the _____ that holds their genetic material, and sometimes the capsid is wrapped in ______ | Capsid, Membrane (envelope) |
Capsid | Container made of protein. |