What Is the Function of Topoisomerase

question 28

Multiple Choice

What is the function of topoisomerase?

• A) relieving strain in the DNA ahead of the replication fork
• B) elongating new DNA at a replication fork by adding nucleotides to the existing chain
• C) adding methyl groups to bases of DNA
• D) unwinding of the double helix
• E) stabilizing single-stranded DNA at the replication fork

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Definitions:

Reinforcement

In behavioral psychology, a consequence applied that strengthens an organism's future behavior whenever that behavior is preceded by a specific antecedent stimulus.

Latent Learning

Learning that occurs without any obvious reinforcement of the behavior or associations that are learned, becoming apparent only when there is an incentive to demonstrate it.

Variable-Ratio

A schedule of reinforcement where a response is rewarded after an unpredictable number of responses, often used in gambling and behavior training.

Shaping

A method used in behavior therapy and training that involves reinforcing successive approximations of a target behavior until the desired behavior is achieved.