The Results of the Experiment Outlined in the Accompanying Figure

question 28

Multiple Choice

The results of the experiment outlined in the accompanying figure clearly demonstrate:

• A) gene amplification.
• B) founder cell development pattern.
• C) mosaic development.
• D) apoptosis.
• E) totipotency.

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Definitions:

Pacemaker

An artificial device implanted in the body which uses electrical impulses to regulate the heart's rhythm or reproduce that rhythm.

Atrioventricular Node

A part of the heart's electrical system which regulates the timing of the heartbeats by delaying the transmission of electrical impulses from the atria to the ventricles.

Sinoatrial Node

A small group of cardiac cells located in the right atrium of the heart that regulates the heart's rhythmic rate by acting as a natural pacemaker.

Purkinje Fibers

Specialized cardiac muscle fibers that conduct electrical impulses involved in regulating the heart's rhythm.