Question

One of the interesting features of viruses is that, they
A .Occur only inside the bacteria
B. Multiply only in the host cytoplasm
С. Are made up of proteins only
D. Behave as if they were plants

Answer 1

A virus is a tiny infectious agent that replicates only inside the living cells of other organisms. All types of life forms, from animals and plants to microorganisms, including bacteria and archaea can be affected by viruses.

Complete answer:
-Only inside the bacteria,viruses do not occur .Thus A is an incorrect option.
-Yes,Viruses can multiply only inside the host cytoplasm. The host cell should provide the energy also synthetic machinery and the low molecular-weight precursors for the fusion of viral proteins and nucleic acids.

Additional Information:
-A virus is fabricated of a core of genetic material, either DNA or RNA, surrounded by a protective coat known as a capsid which is made up of protein. Sometimes the capsid is bounded by an additional spikey coat which is called the envelope. So it's not made up only of protein.This option is incorrect.
-.Plant viruses are the viruses that affect plants. Similarly like other viruses, plant viruses are impel intracellular parasites that don't have the molecular machinery to recreate without a host. Plant viruses are pathogenic to taller plants. Viruses don't behave as if they were plants
So option C is an incorrect option.
Hence,option B. Multiply only in the host cytoplasm is the correct answer.

Note: Most DNA viruses congregate in the nucleus while most RNA viruses evolve solely in cytoplasm. Viruses multiply only in living cells.The virus gets inside the host cells and makes hundred and thousands of duplicates of itself by utilizing the host hardware. Infection can't duplicate without a living cell. When an infection taints a living cell, it infuses its hereditary material (DNA or RNA) inside the host cell.