Nucleus is the main component of the cell and carries out the vital processes of the cell.
- For learning about its structure, a nucleus diagram is quite helpful. Important components of its structure include.
- One feature of the nucleus that distinguishes eukaryotic cells from prokaryotic ones is the nuclear membrane.
- Additionally, it has a double-layer structure. It also has phospholipids in it.
- The nuclear envelope, nucleoplasm, or nucleus sap, nuclear matrix, chromatin, and nucleolus are some of the several structures that make up the nucleus.
- The nuclear membrane, also referred to as the nuclear envelope, creates an envelope-like structure surrounding the nuclear contents.
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It should be 18 because:
100 x 2 = 200
200 + 70 = 270
360 - 270 = 90
90/5 = 18
So x = 18
The branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
The enzymes that are used to replicate a virus are synthesized by the host cell. That is option A.
<h3>Process of viral infection.</h3>
A virus is a microorganism that has the ability to reproduce only by infecting a living host.
The main features of a virus include:
- nucleic acid genome ( RNA or DNA)
For a virus to be able to cause an infection,it has to pass through the following steps:
- Attachment of the virus to the host cell.
- Entry of the viral genetic material into the host cell
- Genome replication and gene expression: through the ribosomes of the host cells, enzymes are released which are used to replicate the invading virus to produce new ones.
Therefore, the enzymes that are used to replicate a virus are synthesized by the host cell.
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