A Cell Is Dividing by Binary Fission

question 47

Multiple Choice

A cell is dividing by binary fission. What can you conclude?

• A) Mitosis has taken place without cytokinesis.
• B) Homologous chromosomes have already paired.
• C) The cyclin-Cdk complex is no longer phosphorylating enzymes.
• D) The cell is undergoing uncontrolled cell division.
• E) The cell is prokaryotic.

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Definitions:

Classical Conditioning

A learning process that occurs when two stimuli are repeatedly paired; a response that is at first elicited by the second stimulus is eventually elicited by the first stimulus alone.

Stimulus Generalization

The tendency for the conditioned stimulus to evoke similar responses after the response has been conditioned.

Conditioned Stimulus

A previously neutral stimulus that, after becoming associated with an unconditioned stimulus, evokes a conditioned response.

Negative Reinforcement

A behavioral principle where the removal of an unpleasant stimulus following a response increases the likelihood of that response in the future.