Introduction to Virology

Question 1

Viruses contain…

Answer 1

nucleic acid genome (DNA or RNA) surrounded by a protein coat. sometimes also other layers such as lipid envelope

Question 2

Viruses do not posses…

Answer 2

standard cellular organelles

Question 3

viruses cannot make….

Answer 3

energy or proteins by themselves

Question 4

all viruses are obligate intracellular parasites….

Answer 4

outside the living cell, virsuses are inert or dormant particles.

Question 5

Viruses do not have the genetic capability to….

Answer 5

multiply by division..

Question 6

the process of virus reproduction resembles an…

Answer 6

assembly line in which various parts of the virus come together from different parts of the host cell to form new virus particles.

Question 7

What is a Virion?

Answer 7

mature virus: a complete virus particle that consist of DNA or RNA core with a protein coat

Question 8

what is a virus?

Answer 8

virus is a broad general terminology used to describe any aspect of the infection agents and includes: Infectious viron or inactivated virus particle

Question 9

What is a Viroid?

Answer 9

infectious particle smaller than any of the known viruses, agent in certain plant DZ, consist of only a small circular RNA, lacks protein coat.

Question 10

what was the first method used to immunize people

Answer 10

variolation or incoluation, material taken from a P or recent variolated individual in the hope that a mild but protective infection would result

Question 11

Edward jenner

Answer 11

first to vaccinate small child with cow pox to prevent small pox