The Four Basic Chemical Elements That Hold the Two Helixes

question 64

Multiple Choice

The four basic chemical elements that hold the two helixes of DNA together are identified by these letters:

• A) A, G, P, D.
• B) A, T, C, G.
• C) G, D, B, T.
• D) G, C, Y, T.

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Definitions:

Melting Alloy

A mixture of two or more metals melted together to create a new material with specific desirable properties.

Bimetallic

Pertaining to an object made of two different metals bonded together, often used in temperature sensing applications.

Motor Starter

An electrical device that controls the use of electrical power to equipment, usually an electric motor, by initiating the stop/start command.

Magnetic Contractor

A specialized type of relay used in high power applications to switch on and off electric currents.