Use the Figure to Answer the Following Question

question 25

Multiple Choice

Use the figure to answer the following question. In the late 1950s, Meselson and Stahl grew bacteria in a medium containing "heavy" (radioactive) nitrogen (15N) and then transferred them to a medium containing 14N (non-radioactive) . Which of the results in the figure would be expected after one round of DNA replication in the presence of 14N?

• A) A
• B) B
• C) C
• D) D

Identify the need for and the application of patient restraints.

Apply knowledge of safety measures in the home environment.

Understand the importance of fall prevention strategies in various settings.

Recognize the importance of proper patient identification and safety in medication administration.

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Definitions:

Aerial Perspective

A visual technique in art used to create the illusion of depth by depicting objects in the distance with less clarity and a bluer tone than those in the foreground.

Motion Parallax

A depth cue that involves the difference in speed of movement of images across the retina as one moves through the environment.

Shape Constancy

The perceptual tendency to perceive an object as having the same shape regardless of its orientation or the angle from which it is viewed.

Figure-ground Constancy

A visual perception principle where an object (figure) is perceived distinctly from its surrounding area (ground).