Eukaryotic Chromosomes Differ from Prokaryotic Chromosomes Because Only Eukaryotes Have

question 91

Multiple Choice

Eukaryotic chromosomes differ from prokaryotic chromosomes because only eukaryotes have

• A)histone proteins.
• B)chromosomes in a nucleus.
• C)several to many chromosomes.
• D)elongated linear, not circular, chromosomes.
• E)All of these choices are correct.

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Definitions:

Variable-Interval Schedules

A reinforcement schedule in operant conditioning where responses are rewarded after an unpredictable amount of time has passed.

Extinction

The gradual weakening and eventual disappearance of a conditioned response when the conditioned stimulus is no longer paired with the unconditioned stimulus.

Successive Approximations

A behavior training process where closer and closer approximations to a desired behavior are reinforced until the desired behavior is achieved.

Shaping

A method of conditioning by which successive approximations towards a desired behavior are reinforced, gradually guiding the behavior closer to the target.