Answer:
Structure of viruses: Viruses have a protein capsule and
genetic materials inside the capsule. These genetic material become active once
they are inside the nucleus of a host cell. They start replicating themselves
and in turn spreading the disease.
Generally
viruses that infect plants have single stranded RNA. Viruses infecting animals
have double stranded RNA or DNA. Viruses which infect bacteria have double
stranded DNA.
Four
Common Viral Diseases:
(a)
AIDS
(b)
Small Pox
(c)
Herpes
(d)
Swine Flu
No comments:
Post a Comment