Science 6B Quiz (BJU)

A virus has a ________, a protein coat that surrounds its nucleic acid.

• capsid

• capsule

• cell membrane

• cytosol

Gene therapy seeks to use viruses to cure ________.

• bacterial illnesses

• cold sores

• defective genes

• ruptured cells

A virus that remains inactive in its host cell for a period of months or years is called a(n) ________ virus.

• Latent

• Active

An injection of a weakened or dead virus is a(n) ________.

• Vaccine

• Infection

• Cold

• Bacteria

Does the diagram show an active or latent virus?

• active
• Latent

Why are viruses sometimes not considered living organisms? Select all that apply.

• Viruses are not made of cells.

• Viruses do not have organelles or membranes.

• Viruses cannot reproduce on their own, instead they rely on an infected host cell to reproduce.

• All scientists consider viruses living organisms.