Identify the choice that best completes the statement or answers the question.
____1.Which of the following statements is INCORRECT?
a.Viruses are not able to move by themselves.
b.Viruses are not able to reproduce by themselves.
c.Viruses are not structurally organized.
d.Viruses are nonliving particles.
e.Viruses contain instructions to manufacture themselves.
____2.Which of the following is FALSE?
a.The outer coats of all viruses are alike.
b.The virus uses either DNA or RNA at its core but not both. c.Viruses can be replicated only after they enter a living cell. d.Most viruses have a protein coat or covering.
e.A virus may not kill a host cell but may become inactive for a period of latency.
____3.Which of the following statements about viruses is TRUE? a.They were the first form of life to evolve.
b.They do not attack plants.
c.They are able to reproduce without using other organisms. d.They are made of protein only.
e.They include some forms that are able to attack bacteria.
____4.When a virus takes over the machinery of a cell, it forces the cell to manufacture a.more mitochondria for energy for the virus.
b.more liposome to isolate itself from water.
c.more food particles.
d.more viral particles.
e.more Golgi bodies so that the cell will secrete the excess viruses.
Examine the figure above and answer the following question(s).
____5.In figure "A", what is being injected into the host cell? a.tail fiberd.nutrient material
b.portion of the capside.cytoskeletal element
____6.The left cycle is named for what is happening in the figure labeled with letter ____. a.Ad.D
____7.In the figure above, the viral DNA in the lysogenic pathway a.has been destroyed by host bacterial enzymes.d.is no longer present. b.is integrated into the bacterial chromosome.e.has been transcribed into RNA. c.has been copied and...