The Activation of the SOS System in a Bacterium Infected

question 33

Multiple Choice

The activation of the SOS system in a bacterium infected with a prophage results in

• A) destruction of certain bacterial genes AND destruction of the viral repressor through host protease activity.
• B) destruction of the viral repressor through host protease activity AND complete lysis of the bacterial culture.
• C) destruction of the viral repressor through host protease activity AND mutation of the DNA 
• D) complete lysis of the bacterial culture, destruction of the viral genes, AND mutation of the DNA.
• E) destruction of certain bacterial genes AND complete lysis of the bacterial culture.

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Definitions:

Meibomian Glands

Oil-secreting glands located in the eyelids that help to lubricate the eyes.

Sebum

An oily secretion of the sebaceous glands that helps lubricate and protect the skin and hair.

Tears

A clear liquid secreted by the lacrimal glands of the eye to lubricate the eyes and protect them from foreign particles.

Vitreous Humor

A clear gel that fills the space between the lens and the retina of the eyeball.