When Damaged or Single-Stranded DNA Activates the RecA Protein, the RecA

question 14

Multiple Choice

When damaged or single-stranded DNA activates the RecA protein, the RecA protein stimulates the cleavage of LexA. This results in

• A) repression of polymerase V and activation of endonuclease.
• B) activation of the Hfr system.
• C) derepression of the SOS system.
• D) increased transduction and recombination.

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Definitions:

Extinction

In behavioral psychology, the gradual decrease and eventual disappearance of a conditioned response when it is no longer reinforced.

Negative Reinforcement

A learning process where the removal of an unpleasant stimulus strengthens a behavior.

Long-Lasting Suppression

The prolonged inhibition or reduction of a response or activity.

Extinction

In behavioral psychology, the process by which a previously learned response diminishes or disappears following discontinuation of reinforcement.