Question

A structural component that is found in all viruses ls?
A. envelope VB. DNA C. Capsid D. Tail Fibers​

Answer 1

Answer:

1. Envelop is not found in virus.
2. Some viruses have Double stranded (which causes disease in animals) has single stranded DNA (which causes disease in plants).
3. Tail fibre is also not present in all viruses.
4. Capsid is present in all type of viruses

So (c) is the correct option.

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Answer 2

The correct solution is Option C, Capsid.

• Viruses are biologically inactive outside of the host cell.
• As obligate intracellular parasites, they rely entirely on the complex metabolic machinery of eukaryotic or prokaryotic cells to replicate.
• A virion is a completely assembled infectious virus.
• Viruses cannot carry out their life-sustaining operations or proliferate without a host cell. Because they lack ribosomes, they can't make proteins and must rely on their host cells' ribosomes to convert viral messenger RNA into viral proteins.
• Viruses cannot produce or store adenosine triphosphate (ATP), thus they must obtain their energy, as well as all other metabolic processes, from the host cell. They also seek out basic building ingredients such as amino acids, nucleotides, and lipids throughout the cell (fats).
• The most basic virions have two basic components: nucleic acid (single or double-stranded RNA or DNA) and a protein coat, the capsid, that serves as a shell to protect the viral genome from nucleases and attaches the virion to specific receptors exposed on the prospective host cell during infection. This shell is made up of capsomers, which are protein subunits grouped into a shell.
• The nucleocapsid of some viruses is surrounded by a glycoprotein envelope. The envelope is made up of two lipid layers (lipoprotein bilayer) that are interspersed with protein molecules and can contain both host cell and viral membrane material.