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What does the medical abbreviation HN mean?
HN stands for hemagglutinin neuraminidase, a protein found in some viruses.
What structures are found in all viruses?
All viruses contain genetic material (DNA or RNA) and a protein coat (capsid) that surrounds and protects the genetic material. Some viruses also have an outer lipid envelope that is derived from the host cell membrane.
What additional protective layer of protein surrounds some viruses-?
The envelope.
What parts is found in some viruses?
but
How did the Hershey and chase experiment produce evidence the DNA and not protein is the hereditary material in viruses?
They found that all of the viral DNA and little of the protein had entered E. coli cells. Then they concluded that DNA is the hereditary molecule in viruses.
Are bacteria and viruses surrounded by a protein coat?
Viruses are surrounded by a protein coat called a capsid, which protects their genetic material. Some bacteria have an outer protein coat called a capsule, which provides protection and helps them adhere to surfaces.
Are viruses made of protein and lipid membranes?
A virus particle is composed of a nucleic acid that is surrounded by the capsid (which is the protective layer that is made out of protein). Some viruses can have lipid envelope however, not all viruses have a lipid envelope.
Do viruses have a protein coat?
no
Why is not important function of the cytoskeleton?
Viruses have some, but not all, of the characteristics of living things.
Is nucleic acid found in viruses?
Yes, nucleic acid is found in viruses. Viruses can contain either DNA or RNA as their genetic material, which carries the instructions for viral replication within host cells. The nucleic acid in viruses is packaged within a protein coat called a capsid.
Why can't viruses be treated with antibioticts?
Antibiotics work in ways that would not effect a virus. For example some antibiotics work on the cell wall of the organism. Others block protein synthesis by binding ribosomes. Viruses are merely nucleic acid (RNA and or DNA) and protein. That means antibiotics are ineffective on viruses.
Do all viruses have protein coats?
yes
