Question

difference between virus nd viroids

Answer 1

Virus is an obligate intracellular parasite which can reproduce only by invading and taking over other cells as they lack the cellular machinery for self reproduction. Viroids are subviral, smallest known agents of infectious disease. The term viroid was coined by T.O.

Answer 2

VIRUSES contain both nucleic acids (DNA or RNA) and a protein coat. Viruses cause infection by inserting their genetic material in a host cell. The host cell then replicates and reads the genetic material, making new viruses that eventually burst out of the cell and leave to infect more. The reason viruses cause disease is that the infected cells cannot carry out the normal functions necessary because its machinery is being used by the virus, and eventually the cell dies. ............................................................................................................................................................................................................... VIROIDS have no protein coat, but are only the nucleic acid (RNA). Because of this, they are often carried around inside viruses. For example, Hepatitis D is a viroid that is carried in the capsid of the Hepatitis B virus.