You Are Attempting to Mutate Lambda to Affect Whether Lysis

question 13

Multiple Choice

You are attempting to mutate lambda to affect whether lysis or lysogeny occurs after lambda infection.Which mutation would INCREASE the chances of LYSOGENY over lysis?

• A) deletion or inactivation of the cI gene
• B) deletion or inactivation of the cro gene
• C) overexpression of the cro gene
• D) deletion of both the cro and cI genes

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Definitions:

Digestive Tract

The series of hollow organs joined in a long, twisting tube from the mouth to the anus where food is processed into nutrients.

Local Reflex

Reflex of the intramural plexus of the digestive tract that does not involve the brain or spinal cord.

CNS

The central nervous system, consisting of the brain and spinal cord, coordinates body activities.

Nicotine

A stimulant and addictive substance found in tobacco products that acts on the nervous system.