This Drawing Depicts Some of the Key Structures Involved in the Biological

question 62

Multiple Choice

This drawing depicts some of the key structures involved in the biological basis of heredity. After studying the image, identify the letter that labels deoxyribonucleic acid (DNA) .

• A)A
• B)B
• C)C

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Definitions:

Auxiliary Contacts

Auxiliary contacts are additional contacts used in a relay or contactor that provide a secondary switching function, often used for signaling or interlocking purposes.

Control Circuit

An electrical circuit designed to control the operation of a device, often using lower power levels than the device it controls.

Relay

An electrically operated switch that allows a circuit to be controlled by a low-power signal, or where several circuits must be controlled by one signal.

Contact

An electrical component used to complete or interrupt an electrical circuit.